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Physics

Physics
A person does some work of 1,000 J in 2 s. His power will be ________

50W
1000W
25W
500W

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Physics
An object at rest may have

Velocity
Potential energy
Kinetic energy
Momentum

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Physics
The audio signals of TV are

Frequency modulated
Amplitude modulated
Velocity modulated
Unmodulated

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Physics
When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?

Nine times
Six times
One–third
Three times

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Physics
During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to

Get out of the car and lie flat in the ground
Abandon the car and take shelter under a nearby tree
Remain in the car
Touch the nearest electric pole

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Physics
Refrigeration is a process which

Inactivates the bacteria
Kills bacteria
Slows down the bacterial growth
Plasmolyses the bacteria

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