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Physics

Physics
In mirrors the back surface is coated with a thin layer of :

Silver nitrate
Mercury
Red oxide
Silver

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Physics
Electron microscope works on which of the following principles?

Faraday's law of Electromagnetic induction
Motion of charged particle in electromagnetic fields
Wave Nature of electrons
Optical interference

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Physics
The device used to change the speed of an electric fan is

Regulator
Switch
Rectifier
Amplifier

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Physics
Heat from the sun reaches earth by the process of

Convection
Conduction
All of these
Radiation

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Physics
Which of the following produces more severe burns ?

Boiling water
Melting iceberg
Hot water
Steam

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Physics
Which law is also called law of inertia ?

Newton first law
Newton second law
Newton third law
All of above

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MORE MCQ ON Physics

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