NSEJS 2024 24th Nov Question Paper

NSEJS 2024 24th Nov - Question 1

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In bilaterally symmetrical animals, segmentation of body into a linear series of similar parts is called metamerism. In which of the following did it appear for the first time?

A

Platyhelminthes

B

Arthropoda

C

Vertebrata

D

Annelida

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NSEJS 2024 24th Nov - Question 2

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While discussing human evolution generally Hominid stocks, Prehistoric and species of Modern Man are described on the basis of fossil records. Select the correct option showing the pair member of a Hominid stocks and a Prehistoric man

A

Homo erectus pekinensis and Homo habilis

B

Homo heidelbergensis and Homo sapiens neanderthalensis

C

Australopithecus and Homo habilis

D

Ramapithecus and Homo sapiens fossilis

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NSEJS 2024 24th Nov - Question 3

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The median longitudinal section of human brain given here under is marked with important parts as $$1$$ to $$4$$.

Following are the functions and disorders related to these parts.
(i) Controls the sleep cycle, manages pain signals and is the pneumotaxic center involved in breathing rhythm regulation. Double vision can be a consequence of damage to this part.
(ii) It maintains homeostasis by directly influencing the autonomic nervous system or by managing hormones. Besides controlling hunger and thirst, it senses fullness when eating. It secretes dopamine and malfunctioning causes Prader-Willi syndrome.
(iii) Plays an important role in controlling emotions and making decisions. Damage to this part can interfere with judging size or distance, learning new words or skills and reaching for objects. It is associated with Chiari malformation.
(iv) Largest structure of white matter, allows perception of depth and enables the two sides of the brain to communicate, and is related with coordination and complex problem-solving. Disfunction may cause schizophrenia and dementia. 

Correlate the above referred characteristics (i) - (iv) with the parts labeled (1 - 4) in the diagram above
and choose the correct option:

A

(i)-2; (ii)-3; (iii)-1 and (iv)-4

B

(i)-4; (ii)-1; (iii)-2 and (iv)-3

C

(i)-3; (ii)-2; (iii)-4 and (iv)-1

D

(i)-4; (ii)-2; (iii)-1 and (iv)-4

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NSEJS 2024 24th Nov - Question 4

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Many insects are serious pests of crop plants. Sap-sucking insects can be controlled by spraying systemic insecticides, like

A

Chloropyriphos

B

Malathion

C

Metasystox

D

Chlorantraniliprole

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NSEJS 2024 24th Nov - Question 5

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What kind of joint is found between the odontoid process of the $$2$$nd vertebra of mammals and the atlas vertebra?

A

Pivotal Joint

B

Saddle Joint

C

Sliding Joint

D

Hinge Joint

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NSEJS 2024 24th Nov - Question 6

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Match the items given under Column-1 with those of Column-2.

A

1- (i), 2- (iii), 3- (ii) & 4- (iv)

B

1- (i), 2- (ii), 3- (iv) & 4- (iii)

C

1- (iv), 2- (ii), 3- (iii) & 4- (i)

D

1- (iii), 2- (i), 3- (iv) & 4- (ii)

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NSEJS 2024 24th Nov - Question 7

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The tympanic cavity is connected with the auditory capsule through very fine openings. Choose the correct option for such openings

A

Fossa ovalis and Fenestra ovalis

B

Fenestra rotundus and Fossa ovalis

C

Foramen ovale and Fenestra ovalis

D

Fenestra ovalis and Fenestra rotundus

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NSEJS 2024 24th Nov - Question 8

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Currently, all new vehicles sold and registered in India should be compliant with which of the following versions of emission standards?

A

BS-VI

B

BS-IV

C

BS-V

D

BS-VII

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NSEJS 2024 24th Nov - Question 9

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In the flow chart given below, accumulation of various products marked $$1$$ to $$4$$ results in some inborn diseases in man.

Give the correct sequence of diseases caused by accumulation of products marked $$1$$ to $$4$$

A

Phenylketonuria, Tyrosinosis, Alkaptonuria and Albinism

B

Alkaptonuria, Albinism, Tyrosinosis and Phenylketonuria

C

Tyrosinosis, Alkaptonuria, Phenylketonuria and Albinism

D

Phenylketonuria, Alkaptonuria, Albinism and Tyrosinosis

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NSEJS 2024 24th Nov - Question 10

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Match the plants mentioned in Column-1 with their characteristics in Column-2. 

A

1-(iv), 2-(i), 3-(ii) & 4-(iii)

B

1-(ii), 2-(iii), 3-(i) & 4-(iv)

C

1-(ii), 2-(iv), 3-(i) & 4-(iii)

D

1-(i), 2-(ii), 3-(iv) & 4-(iii)

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NSEJS 2024 24th Nov - Question 11

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Under the electron microscope chromatin appears to have a string of bead-like structures called nucleosomes. The adjoining diagram shows one such unit. The labeled parts $$1$$ and $$2$$ are its important constituents made up of a total of $$5$$ components. Choose the correct option showing the correct sequence of the $$5$$ component units included in the labeled parts $$1$$ and $$2$$.

A

H1, H2a, H2b, H3 and H4

B

H1, H2b, H3b and H4

C

H2a, H2b, H3, H4 and H1

D

H1, H2, H3a, H3b and H4

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NSEJS 2024 24th Nov - Question 12

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Two statements marked as ASSERTION(A) and REASON(R) are given below. Choose the correct
answer as per the given codes: 

Assertion(A): states that the eyes of nocturnal, cave and deep-water dwelling animals have only rods in their retina. 

Reason(R): Rods provide high sensitivity to light but have relatively low spatial discrimination and no ability to distinguish different wavelengths. 

Choose the correct option

A

Both assertion and reason are true and the reason is the correct explanation of the assertion

B

Both assertion and reason are true and the reason is not the correct explanation of the assertion

C

Assertion is true but reason is false

D

Both assertion and reason are false

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NSEJS 2024 24th Nov - Question 13

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In the diagram given below, what are the maximum kinds of ploidy levels of the various parts labeled?

A

Only Haploid

B

Only Diploid

C

Haploid and Diploid

D

Haploid, Diploid and Polyploid

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NSEJS 2024 24th Nov - Question 14

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According to Cohesion Theory for the ascent of sap in tall trees, all the forces together which create obstacle in the ascent of sap are about $$50\,\mathrm{atm}$$. What is the cohesive force of water which helps continuous rise of sap in tallest trees?

A

$$350\,\mathrm{atm}$$

B

$$200\,\mathrm{atm}$$

C

$$140\,\mathrm{atm}$$

D

$$600\,\mathrm{atm}$$

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NSEJS 2024 24th Nov - Question 15

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Some human males show hypertrichosis of ear pinna. Which of the following is the cause of this genetic characteristic?

A

A dominant gene in male and a recessive allele in female

B

Aneuploidy

C

Holandric gene

D

Trisomy of an autosome

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NSEJS 2024 24th Nov - Question 16

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Which of the following is the agreement to protect the stratospheric ozone layer by phasing out the production and consumption of ozone-depleting substances?

A

Kyoto Protocol

B

Montreal Protocol

C

Rio Summit

D

Stockholm Convention

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NSEJS 2024 24th Nov - Question 17

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A sample of $$1.0\,\mathrm{L}$$ milk weighs $$1.032\,\mathrm{kg}$$. The milk contains $$4\%$$ milk fat by volume having density $$865\,\mathrm{kg/m^3}$$. The density of fat-free skimmed milk in $$\mathrm{kg/m^3}$$ is

A

$$1036.95$$

B

$$1037.95$$

C

$$1038.95$$

D

$$1040.95$$

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NSEJS 2024 24th Nov - Question 18

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A research scholar requires $$50\,\mathrm{mL}$$ aqueous $$\mathrm{NaNO_3}$$ solution containing $$70.0\,\mathrm{mg}$$ of $$\mathrm{Na^+}$$ per milliliter. The amount of $$\mathrm{NaNO_3}$$ required for this purpose is

A

$$0.350\,\mathrm{g}$$

B

$$0.161\,\mathrm{g}$$

C

$$29.75\,\mathrm{g}$$

D

$$12.94\,\mathrm{g}$$

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NSEJS 2024 24th Nov - Question 19

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One structural isomer of $$\mathrm{C_2H_4I_2}$$ contains both iodine atoms attached to the same carbon atom. The bond length of C-I is $$2.10 $$. Assuming tetrahedral angles, the distance between the two iodine atoms is (given that $$sin 54.75° $$ = $$ 0.815$$ and $$ sin 109.5° = 0.94$$)

A

$$2.10 A$$

B

$$2.47 A$$

C

$$4.20 A$$

D

$$3.42 A$$

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NSEJS 2024 24th Nov - Question 20

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Amongst the following, select the option in which all the oxides express acidic nature

A

F-oxide, S-oxide, C-oxide, In-oxide

B

Cl-oxide, P-oxide, Ga-oxide, Be-oxide

C

At-oxide, Xe-oxide, Se-oxide, As-oxide

D

Br-oxide, Xe-oxide, Te-oxide, Sn-oxide

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NSEJS 2024 24th Nov - Question 21

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How many moles of the so-called electron gas weighs one kilogram?

A

$$\frac{6.02}{9.11}\times10^{54}$$

B

$$\frac{100}{6.02\times9.11}\times10^6$$

C

$$6.02\times10^{23}$$

D

$$\frac{10}{9.11}\times10^{30}$$

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NSEJS 2024 24th Nov - Question 22

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The magnitude of electrostatic force between two tiny spherical balls carrying charges $$q_1$$ and $$q_2$$ separated by distance $$r$$ in free space is given by $$F=K\frac{q_1q_2}{r^2}$$ where $$K=9\times10^9$$ in SI units. Two tiny spherical balls of carbon-$$C_{12}^{6}$$ weighing $$1\,\mathrm{g}$$ each are kept $$1\,\mathrm{cm}$$ apart in free space.The two
spheres carry equal and opposite charges. The magnitude of electrostatic force of attraction between the
two charged spheres is F = $$1.0\times10^{-5}\,\mathrm{N}$$. The ratio of the number of excess electrons to total number of
atoms in the negatively charged sphere is

A

$$4.15\times10^{-14}$$

B

$$2.08\times10^9$$

C

$$5.02\times10^{-22}$$

D

$$6.02\times10^{-23}$$

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NSEJS 2024 24th Nov - Question 23

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The correct choice for the properties of the atomic species shown in the following table is.

A

D, D, B, A

B

A, D, B, D

C

D, C, B, E

D

D, C, E, A

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NSEJS 2024 24th Nov - Question 24

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On Fahrenheit scale of temperature, the freezing point of water is marked as $$32°F$$ and the boiling point of
water is marked as $$212°F$$. While the freezing point and boiling point of water on the Celsius scale are
marked as $$0°C$$ and $$100°C$$ respectively.
During the routine checkup of some patient, a doctor measures the temperature of the patient as
$$102.6°F$$. The temperature of patient on Celsius scale is

A

$$37.0^\circ\mathrm{C}$$

B

$$39.0^\circ\mathrm{C}$$

C

$$39.2^\circ\mathrm{C}$$

D

$$39.4^\circ\mathrm{C}$$

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NSEJS 2024 24th Nov - Question 25

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The pH of neutral pure water at $$25^\circ\mathrm{C}$$ is $$7$$. When water is heated to $$70^\circ\mathrm{C}$$ the pH value

A

decreases and its nature turns acidic

B

increases and its nature turns basic

C

remains constant as $$7$$

D

decreases but its nature remains neutral

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NSEJS 2024 24th Nov - Question 26

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The concentration in mole per liter of hydronium ion $$[\mathrm{H_3O^+}]$$ for a solution having pH $$8.26$$ is

A

$$10^{-7}$$

B

$$1\times10^{-9}$$

C

$$5.5\times10^{-9}$$

D

$$3.2\times10^{-3}$$

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NSEJS 2024 24th Nov - Question 27

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The expected values of the normal boiling point of the two compounds A and B given below are $$T_A$$ and $$T_B$$ respectively. Then

A

$$T_A < T_B$$

B

$$T_A=T_B$$

C

$$T_A > T_B$$

D

Cant be predicted

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NSEJS 2024 24th Nov - Question 28

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Which of the following is the strongest material in terms of tensile strength?

A

Diamond

B

Tungsten

C

Graphene

D

Steel

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NSEJS 2024 24th Nov - Question 29

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Which pair of the following group 13 elements represents the pair of the most stable oxidation state of the pair?

A

$$\mathrm{B}^{+},\mathrm{Tl}^{+}$$

B

$$\mathrm{B}^{3+},\mathrm{Tl}^{3+}$$

C

$$\mathrm{B}^{3+},\mathrm{Tl}^{+}$$

D

$$\mathrm{B}^{+},\mathrm{Tl}^{3+}$$

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NSEJS 2024 24th Nov - Question 30

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To have secured and safe travel, air bags are being used in modern vehicles for road journeys. The substance most often used in automobile air bags is

A

$$\mathrm{NaN_3}$$

B

$$\mathrm{Na_3N}$$

C

$$\mathrm{KO_2}$$

D

Acurite

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NSEJS 2024 24th Nov - Question 31

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Most predominantly used metal in magnetic resonance imaging (MRI) contrast solutions is

A

Lr

B

Gd

C

Pm

D

Sm

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NSEJS 2024 24th Nov - Question 32

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An esterification process has been represented by the following chemical reaction.

The fate of the labelled oxygen $$^{18}\mathrm{O}$$ atom in the product is

A

B

C

D

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NSEJS 2024 24th Nov - Question 33

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Which of the following motions has the largest magnitude of acceleration? Assume that all objects are moving in a straight line with constant acceleration.

A

A bus moving with an initial velocity $$72\,\mathrm{km/h}$$ comes to rest in $$2.50\,\mathrm{s}$$

B

A rock during its free fall near the earth surface

C

A car accelerates from rest to $$108\,\mathrm{km/h}$$ in $$4.00\,\mathrm{s}$$

D

A train, starting from rest, takes $$6.00\,\mathrm{s}$$ to cover a distance of $$216\,\mathrm{m}$$

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NSEJS 2024 24th Nov - Question 34

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A sound wave is propagating in a medium in the + x direction at a speed of 360 m/s. At a given instant, a
snap shot of the plot of displacement (D) of various particles of medium from their equilibrium position
(taken along y axis) vs the position (x) of particle on x axis, is shown in figure below. The incorrect
option is

A

the amplitude of the wave is $$5\,\mathrm{mm}$$

B

the frequency of the wave is $$900\,\mathrm{Hz}$$

C

after $$0.01\,\mathrm{s}$$ the trough of the wave will occur at $$x=20\,\mathrm{cm}$$ and $$x=40\,\mathrm{cm}$$

D

this wave will travel a distance of $$1.62\,\mathrm{km}$$ along the positive x axis in $$4.5\,\mathrm{s}$$

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NSEJS 2024 24th Nov - Question 35

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When placed inside a liquid of density $$d_1$$, a sphere sinks as shown in figure 

i. When placed inside a liquid of density $$d_2$$, the same sphere floats with half of its volume above the liquid surface as shown in figure ii. Given that the density of the sphere is $$d$$. 

If $$F_1$$ and $$F_2$$ are the buoyant forces in the two situations, then the ratio $$F_1/F_2$$ equals
[image]

A

$$\frac{d_1}{d_2}$$

B

$$\frac{d_1}{2d_2}$$

C

$$\frac{d_1}{d}$$

D

$$\frac{2d}{d_2}$$

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NSEJS 2024 24th Nov - Question 36

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A car is moving on a horizontal cement road with uniform velocity $$90\,\mathrm{km/h}$$. Read the following statements regarding motion of the car. 

S1 states that acceleration is zero. 

S2 states that no force is acting. 

S3 states that kinetic energy and linear momentum are constant. 

S4 states that the engine is doing no work. 

Choose the correct option

A

Only statements S1 and S2 are true

B

Only statements S1 and S3 are true

C

Only statements S1, S2 and S3 are true

D

All statements S1, S2, S3 and S4 are true

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NSEJS 2024 24th Nov - Question 37

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A particle is moving along a circular path of diameter $$D=14\,\mathrm{cm}$$ with constant speed $$v$$. It takes $$0.02\,\mathrm{s}$$ to complete an arc subtending an angle of $$45^\circ$$ at the center. If $$f$$ is its frequency of revolution, then the correct option is

A

$$v=5.5\,\mathrm{m/s},\ f=6.25\,\mathrm{Hz}$$

B

$$v=5.5\,\mathrm{m/s},\ f=12.5\,\mathrm{Hz}$$

C

$$v=2.75\,\mathrm{m/s},\ f=6.25\,\mathrm{Hz}$$

D

$$v=2.75\,\mathrm{m/s},\ f=12.5\,\mathrm{Hz}$$

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NSEJS 2024 24th Nov - Question 38

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The same liquid is filled in vessels of three different shapes up to the same height, as shown in figures a, b and c. Each vessel has equal base area. 

Let $$P_a$$, $$P_b$$ and $$P_c$$ are the values of liquid pressure on the base of vessels in figure (a), (b) and (c)
respectively. $$W_a$$, $$W_b$$ and $$W_c$$ are the weights of liquid contained in vessels in figure (a), (b) and (c)
respectively. Choose the correct option

A

$$P_a < P_b < P_c$$ and $$W_a < W_b < W_c$$

B

$$P_a=P_b=P_c$$ and $$W_a=W_b=W_c$$

C

$$P_a < P_b < P_c$$ and $$W_a=W_b=W_c$$

D

$$P_a=P_b=P_c$$ and $$W_a < W_b < W_c$$

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NSEJS 2024 24th Nov - Question 39

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An ant moves at constant speed on the principal axis of concave mirror of focal length f , from a point at distance 5 f
from the pole of the mirror to the focus F of the mirror. During the motion of the ant
(consider the ant as a point), its image formed by the mirror
Statement S1: moves with constant speed
Statement S2: has same velocity as that of the ant when the ant is at center of curvature C of the mirror
Statement S3: moves slower in the beginning and faster towards the end
Statement S4: moves faster in the beginning and slower towards the end
Now, choose the correct option:

A

Only statement S1 is correct

B

Statements S2 and S3 are correct

C

Only statement S3 is correct

D

Statements S2 and S4 are correct

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NSEJS 2024 24th Nov - Question 40

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Which of the following cannot be used as a unit of electric current $$i$$?

A

$$\frac{\mathrm{coulomb}}{\mathrm{second}}$$

B

$$\frac{\mathrm{joule}}{\mathrm{coulomb}\,\mathrm{ohm}}$$

C

$$\frac{\mathrm{watt}}{\mathrm{volt}}$$

D

$$\frac{\mathrm{volt}}{\mathrm{coulomb}\,\mathrm{meter}}$$

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NSEJS 2024 24th Nov - Question 41

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From the famous Einstein mass-energy equivalence relation, energy equivalent to one atomic mass unit $$u$$ is required, given $$1u=1.6605\times10^{-27}\,\mathrm{kg}$$ and $$c=2.9979\times10^8\,\mathrm{m/s}$$. It is close to

A

$$931\,\mathrm{J}$$

B

$$931\,\mathrm{eV}$$

C

$$931\,\mathrm{MeV}$$

D

$$931\,\mathrm{keV}$$

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NSEJS 2024 24th Nov - Question 42

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Each resistance in the electrical network shown as a tetrahedron in the adjacent figure is $$R=12\,\Omega$$. The electrical resistance between any two vertices of the tetrahedron must be

A

$$2\,\Omega$$

B

$$3\,\Omega$$

C

$$4\,\Omega$$

D

$$6\,\Omega$$

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NSEJS 2024 24th Nov - Question 43

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Two particles of mass $$1\,\mathrm{kg}$$ and $$4\,\mathrm{kg}$$ are moving with equal kinetic energy. The ratio of magnitudes of their linear momenta is

A

$$1\colon4$$

B

$$1\colon2$$

C

$$2\colon1$$

D

$$1\colon16$$

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NSEJS 2024 24th Nov - Question 44

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In the following figures, all conducting coils are in the Y-Z plane. The magnet is moved along the positive or negative X axis with constant speed. The direction of induced current in each coil is shown as viewed from the positive X axis. Identify the diagram or diagrams that show the correct direction of induced current.

A

only (i), (ii) and (iii)

B

only (iii)

C

only (ii), (iii) and (iv)

D

only (i), (ii) and (iv)

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NSEJS 2024 24th Nov - Question 45

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The heater filament of an electric kettle is a conducting wire of length $$L$$ and diameter $$D$$. When connected to a line voltage source, it takes $$6 $$minute to raise the temperature of $$500 ml$$ of water by
$$40°$$C. If the heater filament is replaced by a new one of same material but length $$2L $$ and diameter $$2D$$, the
time taken for heating the same quantity of water through the same temperature difference will be
(Assume that entire system is thermally insulated)

A

$$12\,\mathrm{min}$$

B

$$6\,\mathrm{min}$$

C

$$3\,\mathrm{min}$$

D

$$1.5\,\mathrm{min}$$

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NSEJS 2024 24th Nov - Question 46

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On straight rails a train is moving with constant velocity $$v$$. Suddenly a wagon breaks away from the train. The train continues with the same velocity while the wagon moves with constant retardation. After breaking away, the wagon covers distance $$d_1$$ before coming to rest and the train covers distance $$d_2$$ in the same duration. The ratio $$d_1/d_2$$ is

A

$$1/3$$

B

$$1/2$$

C

$$2/3$$

D

$$1$$

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NSEJS 2024 24th Nov - Question 47

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A person with short-sightedness or myopia cannot see objects clearly beyond $$2.5\,\mathrm{m}$$. The power of lens required to correct his vision is

A

$$+2.5\,\mathrm{D}$$

B

$$+0.4\,\mathrm{D}$$

C

$$-2.5\,\mathrm{D}$$

D

$$-0.4\,\mathrm{D}$$

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NSEJS 2024 24th Nov - Question 48

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The mass and radius of planet one are $$M$$ and $$R$$ respectively. Assume that both the planets have spherical shape. Acceleration due to gravity on the surface of planet-one and planet-two are g1 and g2 respectively. $$g_1/g_2$$ must be

A

$$1\colon2$$

B

$$2\colon1$$

C

$$1\colon4$$

D

$$4\colon1$$

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NSEJS 2024 24th Nov - Question 49

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Which of the following plants has or have edible aril?

A

Litchi (Litchi chinensis)

B

Rambutan (Nephelium lappaceum)

C

Cashew (Anacardium occidentale)

D

Nutmeg (Myristica fragrans)

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NSEJS 2024 24th Nov - Question 50

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Which of the following statements regarding viruses are incorrect?

A

Usually potentially infectious

B

Reproduction by genetic material only

C

Envelope made of glycolipids

D

Presence of ribosomes

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NSEJS 2024 24th Nov - Question 51

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Which of the following major divisions of algae are characterised by two flagella?

A

Rhodophyta

B

Phaeophyta

C

Chlorophyta

D

Cyanophyta

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NSEJS 2024 24th Nov - Question 52

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Which of the following statements are true?

A

All immunoglobulins are glycoproteins

B

Eosinophils are not polymorphonuclear phagocytes

C

Cilia in the windpipe are mechanical barriers

D

Human beta cells bear IgM and IgD immunoglobulins on their surface

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NSEJS 2024 24th Nov - Question 53

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Which of the following colloids are medicines?

A

Argyrol

B

S-sol

C

Milk of Magnesia

D

Purple of Cassius

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NSEJS 2024 24th Nov - Question 54

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In which of the following processes is the N atom reduced?

A

$$ NH^+_{4} \rightarrow N_{2} $$

B

$$ NH^-_{2} \rightarrow NO $$

C

$$ NO_{2} \rightarrow NO^-_{2} $$

D

$$ NO^-_{3} \rightarrow NH^+_{4} $$

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NSEJS 2024 24th Nov - Question 55

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Which of the following statements are true if one mole of $$\mathrm{H_3PO_x}$$ is completely neutralized by $$40\,\mathrm{g}$$ of $$\mathrm{NaOH}$$?

A

$$x=2$$ and the acid is monobasic

B

$$x=3$$ and the acid is dibasic

C

$$x=4$$ and the acid is tribasic

D

$$x=2$$ and the acid does not form an acid salt

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NSEJS 2024 24th Nov - Question 56

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Select the correct statements regarding an element having $$2$$ K, $$8$$ L, $$9$$ M and $$2$$ N electrons.

A

It contains $$1$$ unpaired electron

B

It contains $$1$$ d-electron

C

It contains $$12$$ p-electrons

D

It is a non-metal

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NSEJS 2024 24th Nov - Question 57

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The screen S is placed at a distance of $$75\,\mathrm{cm}$$ in front of an illuminated object AB. A thin convex lens of focal length $$f=12\,\mathrm{cm}$$ is placed somewhere between the object and the screen so as to obtain a real image of the object on the screen. Choose the correct option(s)

A

Distance between lens and object may be $$15\,\mathrm{cm}$$

B

Distance between lens and object may be $$60\,\mathrm{cm}$$

C

Image size may be larger than object size

D

Image size may be smaller than object size

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NSEJS 2024 24th Nov - Question 58

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In the circuit shown in the adjacent figure, a voltmeter of resistance $$6000\,\Omega$$ has been connected across a $$3\,\mathrm{k\Omega}$$ resistor. Internal resistance of the battery is negligible. Choose the correct options.

A

Voltmeter reading is $$8\,\mathrm{V}$$

B

Current passing through the $$1\,\mathrm{k\Omega}$$ resistor is $$2\,\mathrm{mA}$$

C

Current drawn from the battery is $$6\,\mathrm{mA}$$

D

Electrical power dissipated in the $$6\,\mathrm{k\Omega}$$ resistor is $$24\,\mathrm{mW}$$

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NSEJS 2024 24th Nov - Question 59

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A train moving on a straight horizontal track with constant speed $$108\,\mathrm{km/h}$$ approaches a hill. When the engine is $$1200\,\mathrm{m}$$ from the hill, it produces a whistle of frequency $$550\,\mathrm{Hz}$$. Assuming the speed of sound is $$330\,\mathrm{m/s}$$, choose the correct options

A

The echo from the hill will be heard by the driver after $$1/9\,\mathrm{min}$$

B

The distance of the engine from the hill when the echo is heard is $$1000\,\mathrm{m}$$

C

The wavelength of the sound produced by the whistle is $$60\,\mathrm{cm}$$

D

The echo from the hill will be heard by the driver after $$20/3\,\mathrm{s}$$

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NSEJS 2024 24th Nov - Question 60

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Velocity-time graphs of three athletes Ramesh, Naresh and Dinesh for a given duration from $$0$$ to $$30\,\mathrm{min}$$ are given below.

Graph OAB is the v-t graph for Ramesh, DE is the v-t graph for Naresh and OC is the v-t graph for Dinesh. The graphs are linear. Which of the following option(s) is/are correct during given interval of time?

[image]

A

Athlete Dinesh has travelled maximum distance

B

Athletes Ramesh, Naresh and Dinesh each have travelled equal distance

C

Acceleration of athlete Dinesh is $$40\,\mathrm{km/h^2}$$

D

None of the athletes is in uniform motion

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