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Q:

If the kinetic energy of a body becomes 256 times its initial value, then the new linear momentum will be

A) 8 times the initial value B) 16 times the initial value
C) the same as the initial value D) 32 times the initial value
 
Answer & Explanation Answer: B) 16 times the initial value

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Q:

The SI unit of resistance is:

A) Newton B) Coulomb
C) Ohm D) Joule
 
Answer & Explanation Answer: C) Ohm

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Q:

In a sound wave compressions are regions where density _________________________

A) as well as pressure is high B) as well as pressure is low
C) is high and pressure is low D) is low and pressure is high
 
Answer & Explanation Answer: A) as well as pressure is high

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Q:

The volume of air delivered by the compressor is called

A) Compressor capacity B) Swept volume
C) Free air delivery D) None of these
 
Answer & Explanation Answer: A) Compressor capacity

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Q:

1kWH = .........J

A) 3.6×10^-8 B) 3.6×10^-6
C) 3.6×10^8 D) 3.6×10^6
 
Answer & Explanation Answer: D) 3.6×10^6

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Q:

The force which makes a vehicle to stop when break is applied is called

A) gravitational force B) vander­walls force
C) frictional force D) co­valant force
 
Answer & Explanation Answer: C) frictional force

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Q:

When the vibrating object moves forward, it creates a region of high pressure in the medium called ______.

A) dilation B) compression
C) relaxation D) negation
 
Answer & Explanation Answer: B) compression

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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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