Physics 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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1 1918
Q:

In which form is the supplied heat energy stored during change in temperature of substance?

A) Heat energy B) Kinetic energy
C) Potential energy D) Both kinetic and potential energy
 
Answer & Explanation Answer: B) Kinetic energy

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0 1917
Q:

 Find the work done (in J) when a charge of 10 C moves across a potential difference of 2 V.

A) 20 B) 5
C) 40 D) 10
 
Answer & Explanation Answer: A) 20

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9 1911
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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1 1909
Q:

In a _________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation

A) longitudinal B) rolling
C) transverse D) field
 
Answer & Explanation Answer: C) transverse

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2 1907
Q:

The value of acceleration due to gravity (g) at a distance of 2R from the surface of earth, where R is the radius of earth is ______.

A) g/3 B) g/4
C) g/9 D) g/2
 
Answer & Explanation Answer: C) g/9

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2 1906
Q:

The shortest distance measured from the initial to the final position of an object is known as the _________________.

A) motion B) direction
C) velocity D) displacement
 
Answer & Explanation Answer: D) displacement

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1 1904
Q:

What is the phenomenon which established the transverse nature of light ?

A) Reflection B) Interference
C) Diffraction D) Polarisation
 
Answer & Explanation Answer: D) Polarisation

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0 1898