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Introduction to Sound

the velocity ...

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the velocity of sound in air is V_{s .{}}if the density of the air is increase d by 4 times then the new velocity will be

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Q. The velocity of sound is

v_{s}

in air. If density of air is increased twice then the new velocity of sound will be

Q. Assertion :The velocity of sound in air increases due to the presence of moisture in it. Reason: The presence of moisture in air lowers the density of air.

v_{m}

is the velocity of sound in moist air and

v_{d}

is the velocity of sound in dry air, then ________.

Q. The difference of two liquid levels in a manometer is

10 c m

and its density is

0.8 g m / c m^{3}

. If the density of air is

1.3 \times 10^{3} g m / c m^{3}

then the velocity of air will be (in

c m / s

)

Q. When temperature is increased by

1^{o} C

, velocity of sound in air increases by

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