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 Physics Questions

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Q:

Which bulb operates on lowest power?

A) Night bulb B) Torch bulb
C) Neon bulb D) GLS bulb
 
Answer & Explanation Answer: B) Torch bulb

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Q:

In projectile motion, the total flight time is _______.

A) equal to the time required to reach the maximum height B) thrice the time required to reach the maximum height
C) four times the time required to reach the maximum height D) twice the time required to reach the maximum height
 
Answer & Explanation Answer: D) twice the time required to reach the maximum height

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Q:

Which phenomenon is responsible for the echo of sound wave?

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

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Q:

In science a push or pull of an object is called ________.

A) Pick B) Lift
C) Force D) Shut
 
Answer & Explanation Answer: C) Force

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Q:

A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

A) The liquid surface falls down on the direction of motion and rises up on the back side of the tank B) The liquid surface falls down only at the center of the tank
C) The surface of the liquid remains horizontal D) None
 
Answer & Explanation Answer: A) The liquid surface falls down on the direction of motion and rises up on the back side of the tank

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Q:

Farad is unit of ___________.

A) Capacitance B) Reactance
C) Electric charge D) Electric conductance
 
Answer & Explanation Answer: A) Capacitance

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Q:

The time period of a sound wave is 0.01 seconds. Find its frequency (in Hz).

A) 100 B) 10
C) 50 D) 20
 
Answer & Explanation Answer: A) 100

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Q:

Momentum is measured as the product of :

A) Mass and inertia B) Mass and force
C) Mass and velocity D) Mass and acceleration
 
Answer & Explanation Answer: C) Mass and velocity

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