Physics Questions

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

Explanation:
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0 1928
Q:

At what distance from the earth is gravity zero

Answer

Gravitational force is the force that binds everything at the surface of the earth. It holds at what distance from the earth is gravity zero. 

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT
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1 1926
Q:

A wave with high amplitude have

A) high pitch B) low energy
C) high energy D) low pitch
 
Answer & Explanation Answer: C) high energy

Explanation:

The amplitude of a wave is a measure of the displacement of the wave from its rest position i.e, half the distance from its highest point to its lowest point.


Amplitude is proportional to the energy of a wave.

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2 1924
Q:

If an object is thrown upwards, what will be its velocity, when it reaches its maximum height?

A) 0 m/s B) 4.9 m/s
C) 14.7 m/s D) 20 m/s
 
Answer & Explanation Answer: A) 0 m/s

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1 1924
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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0 1924
Q:

What is the SI unit of temperature?

A) Kelvin B) Joule
C) Celsius D) Fahrenheit
 
Answer & Explanation Answer: A) Kelvin

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0 1916
Q:

Which device is used to measure the depth of ocean?

A) Lexometer B) Nanometer
C) Fathometer D) Hydrometer
 
Answer & Explanation Answer: C) Fathometer

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0 1916
Q:

______________ of a wave is the rate of transfer of energy per unit area perpendicular to the direction of travel of the wave.

A) Interference B) Rectification
C) Intensity D) Diffraction
 
Answer & Explanation Answer: C) Intensity

Explanation:
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1 1916