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 Physics Questions

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Q:

A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor.

 

A) 6400 B) 3200
C) 1600 D) 4800
 
Answer & Explanation Answer: B) 3200

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Q:

If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?

A) Acceleration B) Kinetic Energy
C) Velocity D) Momentum
 
Answer & Explanation Answer: D) Momentum

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Q:

What is the SI unit of pressure?

A) Newton B) Weber
C) Pascal D) Henry
 
Answer & Explanation Answer: C) Pascal

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Q:

Magnetic striping is evidence of

Answer

Magnetic striping is evidence of seafloor spreading.

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Q:

Which instrument is used for measuring humidity of atmosphere?

A) Barometer B) Anemometer
C) Thermometer D) Hygrometer
 
Answer & Explanation Answer: D) Hygrometer

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Q:

Which of the following is not a vector quantity?

A) Work B) Force
C) Displacement D) Velocity
 
Answer & Explanation Answer: A) Work

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Q:

If speed of rotation of the earth increases, the weight of the body

A) decreases B)
C) D)
 
Answer & Explanation Answer: A) decreases

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Q:

What is the SI unit of Power?

A) Boyle B) Watt
C) Newton D) Pascal
 
Answer & Explanation Answer: B) Watt

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