Physics Questions

Q:

For a body moving with uniform acceleration its final velocity equals _________________.

A) average velocity - initial velocity B) 2 x average velocity - initial velocity
C) 2 x average velocity + initial velocity D) average velocity + initial velocity
 
Answer & Explanation Answer: B) 2 x average velocity - initial velocity

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0 1019
Q:

Which of the following is a renewable source of energy?

A) Coal B) Petroleum
C) Plant D) Natural Gas
 
Answer & Explanation Answer: C) Plant

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1 1016
Q:

___________________ is defined as the force acting per unit current per unit length on a wire placed at right angles to the magnetic field.

A) Magnetic susceptibility B) Magnetic flux density
C) Magnetic flux D) Magnetic pulse
 
Answer & Explanation Answer: B) Magnetic flux density

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1 1016
Q:

The material used in electric heater is

A) Tungsten B) Nichrome
C) Brass D) Steel
 
Answer & Explanation Answer: B) Nichrome

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2 1015
Q:

What is the power rating (in W) of a bulb if a current of 0.3 A passes through on application of 240 V of potential difference across its terminals?

A) 800 B) 36
C) 400 D) 72
 
Answer & Explanation Answer: D) 72

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0 1013
Q:

A raised hammer possesses

A) Kinetic energy B) Mechanical energy
C) Muscular energy D) Potential energy
 
Answer & Explanation Answer: D) Potential energy

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0 1013
Q:

1 m/s equals ____________ km/hr

A) 5/16 B) 16/5
C) 18/5 D) 5/18
 
Answer & Explanation Answer: C) 18/5

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2 1012
Q:

Instrument used for measuring specific gravity is called _____.

A) Bathymeter B) Cryometer
C) Areometer D) Cymometer
 
Answer & Explanation Answer: C) Areometer

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1 1010