Why does dispersion occur when white light which is a mixture of seven colours passes through a glass prism?
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Why does dispersion occur when white light which is a mixture of seven colours passes through a glass prism?
Which of the following fuels is NOT used in thermal power plants?
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Simplify: $$1.\overline{2} - 0.1\overline{2}$$
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What does the Ashoka's wheel in the Indian National Flag represent?
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Bronze is an alloy of
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Who was the Governor General of India during the Sepoy Mutiny?
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Read the following information carefully and answer the question given below.
Eight friends—P, Q, R, S, T, U, V and W are sitting around a circular table facing the centre. Each one of them likes different brands of watch—Sonata, Titan, Fastrack, Swiss, Casio, Timex, Rolex and Fossil, but not necessarily in the same order. P sits third to the right of the person who likes Fossil. P does not like Fastrack. T is not an immediate neighbour of W. R sits on the immediate right of the person who likes Fastrack. Neither P nor W likes Casio or a Titan. The person who likes Casio is not an immediate neighbour of the person who likes Fossil. The person who likes Sonata sits second to the left of T. The person who likes Sonata is an immediate neighbour of the both persons who like Timex and Rolex. Person who likes Rolex sits third to the right of Q. Q does not like Casio. U is not an immediate neighbour of P. V is not an immediate neighbour of the person who likes Sonata.Only two people sit between the person who likes Rolex and W. The persons who like Casio and the Titan are immediate neighbours of each other.
Who among the following likes Titan?
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How many Squares are their in the given figure?

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If A + B = C, D - C = A and E - B = C,then what does D + F stand for?
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What is the valley (lowest portion) of a sound wave called?
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Divide Rs.305 in three parts, so that $$\frac{3}{7}$$ of the first, $$\frac{2}{3}$$ of the second and $$\frac{4}{5}$$ of the third are equal. Find the share of the third one
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Complete the series.
CX, WP, UJ, SF, (…)
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Whenis 'World Ozone Day' observed?
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If north east becomes west and south east becomes south and so on, whatwill be the west?
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Two numbersdiffer by 1365. On dividing the larger number by the smaller, the quotient and remainder got are 6 and 15 respectively. Find the larger number.
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Who was the first Indian male athlete to reach the final of an Olympic athletic event?
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There are six members in a family. This year the father died and he has a son Ramesh, and a son is born to Ramesh. The average age of the family is the same now as it was 10 years back. At what age has the father of Ramesh died?
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The force of attraction between all masses in the universe, especially the attraction of the earth's massfor bodies nearits surface is called
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Which of the following is a folk dance popular during the harvest season in Punjab?
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A trader makesa profit by selling goods at a profit of 20%. He also uses weights that are 20%less. Whatis his actual gain per cent?
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Which of these is NOT a blood group?
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An aqueoussolution turns red litmus solution blue. Excess addition of which of the followingsolutions would reverse the change?
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Express $$\frac{44}{5}\% + \frac{4}{5}\% + \frac{0.4}{5}\%$$ in decimal form
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Whichis the oldest hockey tournamentin India?
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Bohr's orbits are called stationary, because
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P is facing Q. Q is to the north of P. R is placed on right side of Q. What is the direction of R with respect to P?
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At what rate per cent will a sum of money double itself in 30 years?
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The Government of India designated 29 June every year as 'Statistics Day' in the memory of
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On increasing the temperature of solids, the kinetic energy of the particles
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becomethe first police force in the country to digitise all malkhanas, rooms for
keeping seized arms and ammunition.
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The negatively charged ion is known as
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Which of the following laws states that electric current 'I' flowing through a metallic wire is directly proportional to the potential difference 'V', across its ends provided its temperature remains constant?
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If 'PALE' is coded as 2134, 'EARTH'is coded as 41590, how is 'PEARL' coded?
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What is the unit of measurement of very long distances between celestial bodies?
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In this question, two statements are given followed by two conclusions. Choose the conclusion(s) which best fit(s) logically.
Statements:
1) All fruits are baskets.
2) Some baskets are jars.
Conclusions:
I. Some jars are baskets.
II. No basket is fruit.
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Find the ODD one out from the given options.
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Find the ODD one out from the given options.
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According to Mendeleev's periodic law, the elements were arranged in the periodic table in the order of
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Which of the following is the cause of ringworm?
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Complete the series.
7, 35, 33, 63, 60, 92, (...)
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Two numbers have their LCM and HCF to be 693 and 11 respectively. If one number is 99, find the other number.
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Put the proper symbols $$+, -, \times, \div$$ in the blank spaces to fit the equation.
(18_3)_7_15_5 = 0
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Which of the following cities became the first to launch a 24×7 Ultra Low Emission Zone(ULEZ), inside which vehicles will have to meet emission standards or face a charge?
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What does the five interlinked rings in the Olympic flag represent?
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Choose the alternative that best replaces the question mark from the given figure?

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While executing a job, what 20 women candoin 16 days will be done by 16 menin 15 days.Find the ratio of capacity of a man to that of a woman.
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Which element is the first element in the periodic table?
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P, Q and R work together to finish a work. P and Q finish 70% of the work while Q and R finish 50% of the work. Who will finish first, if they work alone?
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Simplify: 0.8 + 0.08 + 0.008 + 8
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Evaluate: $$\left[\frac{\sqrt{3} + 1}{\sqrt{3} - 1}\right]^2 + \left[\frac{\sqrt{3} - 1}{\sqrt{3} + 1}\right]^2$$
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Complete the series.
11, 77, 38.5, 231, (…)
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What causes decomposition of organic matter?
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Lactose is composed of and glucose.
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A son's present age is two-fifths of his mother’s age. After 8 years, he will be one half hismother's age. Whatis his mother's age now?
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Find the ODD one out from the given options.
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If $$(1 + \tan A) (1 + \tan B) = 2$$, then find $$A + B$$.
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Find the wrong number in the following series
6, 12, 21, 36, 56, 81
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In this question, a statement is given followed by two conclusions. Choose the conclusion(s) which best fit(s) logically.
Statement:
Money plays a vital role in our lives.
Conclusions:
I. The poor can never become rich.
II. All the rich men take part in politics.
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In the given figure the circle represents educated,rectangle represents unemployed and square represents villagers.which region represents villagers and educated but not employed?

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Sound travels in a medium as a
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Which harmoneis producedbyIslets of langerhans to control diabetes mellitus?
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A person travels from P to Q at a speed of 50 km/h for 30 minutes. He then increases his speed to 60 km/h and reaches his destination R in 20 minutes. What is his average speed for the whole journey?
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Whichof the following is a reproductive cell?
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Find the missing number in the following series.
13, 32, 24, 43, 35,(...), 46, 65
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A cone is 32 cm high and the radius of its base is 8 cm. It is melted and recast into a sphere. Find the radius of the sphere
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Simplify: $$\cos(30^\circ - A) - \cos(30^\circ + A)$$
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Which of these states was NOT divided in the year 2000?
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Which of the following does NOT increase while moving down the group of the periodic table?
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If $$x + \frac{1}{x} = 2$$, then find the value of $$x^2 + \frac{1}{x^2}$$.
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What is the concept of spherical mirrors?
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In this question, statement is given followed by three conclusions. Choose the conclusion(s) which best fit(s) logically.
Statement:
$$F \leq H < J \geq V > E$$
Conclusions:
I. $$H < V$$
II. $$J > E$$
III. $$F < E$$
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What is the name of the observatory to study Saturn's moon and comets by NASA 2018 campaign?
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A hare spots a dog 100 m away and starts running away from it at 12 km/h. One minute later,the dog gives a chase at 16 km/h speed. At what distance from the spot where the hare took flight and the dog catch the hare?
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Which number will best complete the relationship given below?
7 : 64 :: 8 : ?
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Which of these is used to break the circuit or to close the electric circuit?
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Which of these is a trace element?
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Which of these fractions cannot be reduced further?
$$\frac{14}{21}, \frac{33}{43}, \frac{18}{24}, \frac{92}{24}, \frac{41}{82}$$
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Which number will best complete the relationship given below?
120 : 168 :: 288 : ?
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Captain AmarinderSinghis the present Chief Ministerof-
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What is the LCM of $$6(xy - y), 8 (x^4y - xy)$$?
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If the selling price of an article is Rs.240, the profit is 20%, then for how much should it be sold, if the profit is to be 30%?
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Which acid is present in sour milk?
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The reaction of sodium sulphate and barium chloride solution is an example of
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Which state lies to the east of Jharkhand?
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Read the following information carefully and answer the question given below.
Eight friends—P, Q, R, S, T, U, V and W are sitting around a circular table for a meeting facing center. P is second to the right of V who is third to the right of Q. S is second to the left of U who sits between V and P. R is not a neighbour of Q or T.
Who is third to the right of V ?
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Which of these plants has multi coloured leaves?
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In the second quadrant, $$\cos \theta$$ varies from:
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If $$A, B$$ and $$C$$ are three points on a circle, where $$BC$$ is the diameter and $$AC = AB = 5\sqrt{2} cm$$. Find the radius of the circle.
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India's first self-made fighter jet is
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If in a certain code 'YELLOW' is written as 'XFKMNX', how is 'BORDER' coded?
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What is the difference between Compound Interest and Simple Interest on Rs.1000 at 10% after 4 years?
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Which agent produces a local or general loss of sensation?
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A metallic sphere of radius 6 cm is melted and drawn into a wire, whose radius of cross section is 8 cm. What is the length of the wire?
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Find the missing group of alphabets in the following series.
WO, CJ, HF, (…), RA
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P invests Rs.3500 in a business. After 5 months, Q joins him with some investment. If the profit that Q gets is 50% more than that of P, then find the investment of Q.
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Simplify: $$(\sqrt{6} - 2\sqrt{3})^2$$
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Find the smallest three-digit numberthat is exactly divisible by 12.45.and24.
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What is reduced by a lubricant?
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Acidic solutions in water conduct electricity because they produce
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Find the value of $$6 \div 2 \times (1 + 2)$$
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