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Physics

Physics
The rate at which energy is transferred is called

Watt
Power
Volt
Potential

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Physics
On which of the following techniques photostate machine works ?

Electrostatic Image—Making
Magnetic Image—Making
Electromagnetic Image— Making
Thermal Image—Making

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Physics
A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will

Remain unaffected
Have its shape changed
Decrease
Increase

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Physics
Which of the following is a compound machine?

Bicycle
Ramp
Knife
Screw

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Physics
The ordinary and maximum tolerance limit of sound by human being is

50 db to 70 db (decibel)
65 db to 75 db (decibel)
70 db to 85 db (decibel)
60 db to 80 db (decibel)

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Physics
Fibre optics work on the principle of

Total internal absorption
Optical rotation
Total internal reflection
Scattering of light

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MORE MCQ ON Physics

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