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Physics

Physics
Eddy current is generated by

Conduction
Direct Current
Induction
Convection

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Physics
Which one of the following physical quantities has the same dimensions as that of Planck's constant?

Potential energy
Angular momentum
Force
Linear momentum

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Physics
The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because

The glass of the bell jar absorbs the sound waves
The ringing is not loud enough
There is no air or any other gas in the bell jar
The bell jar is too small

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Physics
The increasing order of the refractive index of certain materials is (left to right) ________

Ice, Kerosene, Benzene, Rock Salt
Rocksalt, Benzene, Kerosene, Ice
Rock Salt, Ice, Benzene, Kerosene
Kerosene, Ice, Benzene, Rock Salt

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Physics
Quality of a musical note depends on

Velocity of sound in the medium
Amplitude of the wave
Fundamental frequency
Harmonics present

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Physics
The impurity atoms with which silicon should be doped to make p-type semiconductors are

Antimony
Germanium
Phosphorus
Boron

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