Questions

Q:

What is the SI unit of Charge?

A) Coulomb B) Amperes
C) Watts D) Joules
 
Answer & Explanation Answer: A) Coulomb

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Q:

Which of the following statements is correct about the President of India ?

A) Addresses first session of Parliament after each General Election. B) Addresses first session of Parliament at the beginning of each year
C) Addresses every session of Parliament D) Never addresses Parliament
 
Answer & Explanation Answer: A) Addresses first session of Parliament after each General Election.

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Q:

A rocket is launched to travel vertically upward with a constant velocity of 20 m/s. After travelling for 35 seconds, the rocket develops a snag and its fuel supply is cut off. The rocket then travels like a free body. The height achieved by it is

A) 680 m B) 720 m
C) 800 m D) 700 m
 
Answer & Explanation Answer: B) 720 m

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Q:

A lens has a power +2.0 D. The type of lens and its focal length will be

A) Concave, -0.5 m B) Convex, 0.5 m
C) Concave, 0.5 m D) Convex, -0.5 m
 
Answer & Explanation Answer: B) Convex, 0.5 m

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Q:

The diameter of the reflecting surface of a spherical mirror is called a/an

A) principal axis B) aperture
C) focus D) pole
 
Answer & Explanation Answer: B) aperture

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Q:

An object of 5.0 kg is raised through a height of 2.0m. The work done in the process is

A) 49 J B) 10 J
C) 19.6 J D) 98 J
 
Answer & Explanation Answer: D) 98 J

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Q:

What is the upward force exerted by water called?

A) Density B) Buoyant force
C) Gravitation D) Friction
 
Answer & Explanation Answer: B) Buoyant force

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Q:

The energy released at the end of digestion is in the form of

A) thermal energy B) electric energy
C) kinetic energy D) chemical energy
 
Answer & Explanation Answer: D) chemical energy

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