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Physics

Physics
Sound waves cannot travel through

Vacuum
Liquid
Solid
Gas

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Physics
If an empty cylinder is half filled with a liquid, its center of gravity is

Shifted upwards
Shifed neither upward nor downward
Shifted upward or downward depending on the density of the liquid
Shifted downwards

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Physics
When a ring of metal is heated what happens to its hole ?

It expands or contracts according to its diameter
Contracts
Expands
It expands or contracts according to its coefficient of expansion

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Physics
Which of the following characteristics of light remains unchanged when light travels from vaccum enters water

Frequency
Speed
Wavelength
Amplitude

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Physics
Light travels at the fastest speed in:

glass
water
vacuum
hydrogen

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Physics
The alluminating powers of two sources are compared by

A photometer
A polarimeter
A fluxmeter
A spectrometer

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MORE MCQ ON Physics

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