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Physics

Physics
Electric current is measured by which instrument?

Voltmeter
Ammeter
Barometer
Sinometer

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

Red oxide
Silver nitrate
Mercury
Silver

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Physics
When a vehicle passes, TV reception gets distorted. This is because

Spark plug creates electromagnetic disturbances
Vehicle pollution affects the performance of the TV components
Metal reflects radiowaves
Modern vehicles use electroignition system

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Physics
Hydraulic brakes work on the principle of

Newton's law
Bernoulli's theorem
Pascal's law
Thomson's law

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Physics
The speed of sound travel fastest through

Solid
Liquid
None of these
Gas

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Physics
The sky appears blue because of

Scattering of light
Atmospheric water vapour
Reflection on sea water
Emision of blue wavelength by the sun

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MORE MCQ ON Physics

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