Questions

Q:

An object is in static equilibrium when it is _______.

A) at rest B) moving in a circular path
C) moving with uniform velocity D) accelerating at high speed
 
Answer & Explanation Answer: A) at rest

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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best express the same sentence in Indirect/Direct speech.

 

He said to Raina,"I cannot marry you now but I shall surely do so next year."

 

A) He told Raina that he cannot marry her now but would surely do so the following year. B) He told her that he could not marry Raina then but would surely marry her next year.
C) He told Raina that he could not marry her then but he would surely do so the following year. D) He told Raina that he would not marry her then but would surely do so the next year.
 
Answer & Explanation Answer: C) He told Raina that he could not marry her then but he would surely do so the following year.

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Q:

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

turn turtle

A) slow like a turtle B) turn like a turtle
C) over-turn D) a game turtles play
 
Answer & Explanation Answer: C) over-turn

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

A hot spring in which water intermittently boils, pushing a tall column of water and steam into the air.

A) geyser B) smite
C) brew D) pitted
 
Answer & Explanation Answer: A) geyser

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Q:

In the gamma decay of a nucleus

A) the mass number of the nucleus changes whereas its atomic number does not change B) the mass number of the nucleus does not change whereas its atomic number changes
C) both the mass number and the atomic number of the nucleus change D) neither the mass number nor the atomic number of the nucleus changes
 
Answer & Explanation Answer: D) neither the mass number nor the atomic number of the nucleus changes

Explanation:

The emission of gamma rays does not alter the number of protons or neutrons in the nucleus but instead has the effect of moving the nucleus from a higher to a lower energy state (unstable to stable)

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Q:

When ice floats on water, its _____ part remains outside the water.

A) 0.5 B) 0.3
C) 0.1 D) 1
 
Answer & Explanation Answer: C) 0.1

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Q:

Why does a cannon recoil after firing ?

A) Conservation of energy B) Backward thrust of gases produced
C) Newton's third law of motion D) Newton's first law of motion
 
Answer & Explanation Answer: C) Newton's third law of motion

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Q:

Find the angular elevation of the sum when the shadow of a 15m long pole is 152meters

A) 45° B) 60°
C) 30° D) 90°
 
Answer & Explanation Answer: B) 60°

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