Physics Questions

Q:

Which of the following cannot be used for making lenses?

A) Plastic B) Soil
C) Glass D) Water
 
Answer & Explanation Answer: B) Soil

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Q:

What is the SI unit of frequency?

A) Newton B) Watt
C) Farad D) Hertz
 
Answer & Explanation Answer: D) Hertz

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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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Q:

A ball rolling along the ground gradually slows down and finally comes to rest is due to ________.

A) Friction B) Magnetic force
C) Electrostatic force D) Muscular force
 
Answer & Explanation Answer: A) Friction

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Q:

If the Distance-Time graph is a straight inclined line then it represents _______________.

A) uniform speed B) non-uniform speed
C) constant displacement   D) non-uniform velocity
 
Answer & Explanation Answer: A) uniform speed

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Q:

The solubility of a gas in a liquid is

A) increased with increasing pressure B) decreased with increasing temperature
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The solubility of a gas in a liquid is directly and inversely proportional to pressure and temperature respectively.

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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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Q:

The angle between the __________and the incident ray is called the angle of incidence.

A) surface B) normal
C) tangent D) reflected ray
 
Answer & Explanation Answer: B) normal

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