NSEJS 2024 24th Nov Question Paper

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?

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

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:

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

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

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

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

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

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 $$4$$

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

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 $$2$$.

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

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

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?

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

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 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 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

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 $$ sin 109.5° = 0.94$$)

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

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

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

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

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

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

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

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

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

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

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

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

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

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 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

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
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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 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

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

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:

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

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

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

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

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.

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)

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 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

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

Which of the following plants has or have edible aril?

Which of the following statements regarding viruses are incorrect?

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

Which of the following statements are true?

Which of the following colloids are medicines?

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

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

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

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)

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 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

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?

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