Q:

What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?

A) 6400	B) 1280
C) 640	D) 3200

Answer & Explanation Answer: B) 1280

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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:

Mirages are formed primarily due to ___ of light.

A) Reflection	B) Diffusion
C) Refraction	D) Scattering

Answer & Explanation Answer: C) Refraction

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Q:

The unit of power used in industry is

A) Joule	B) Watts
C) Horse power	D) Kilowatts

Answer & Explanation Answer: C) Horse power

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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:

A unit of power is called a

A) Joule	B) Pascal
C) Newton	D) Watt

Answer & Explanation Answer: B) Pascal

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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:

Boiling point of water is ___.

A) 210 deg F	B) 212 deg F
C) 214 deg F	D) 208 deg F

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