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Physics

Physics
Electrons carry a

Negative Charge
Variable Charge
Neutral Charge
Positive Charge

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Physics
The width of depletion layer of a P-N junction

Increases with heavy doping
Is increased under reverse bias
Is independent of applied voltage
Decreases with light doping

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Physics
A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan

Remains the same
Decreases
First increases and then decreases
Increases

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Physics
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

4.33 N
3.33 N
5.33 N
6.33 N

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Physics
In superconductors, the energy gap is due to

Electron-electron interaction
Phonon-phonon interaction
Electron-photon intercation
Electron-phonon interaction

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Physics
In very cold countries alcohol is used as a thermometric liquid because

Alcohol can be coloured for its level to be seen easily
It will not stick to the glass tube
Alcohol is a poor conductor of heat
Its freezing point is very low

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