Question

If density of gas increases to 4 times then velocity of sound reduced to ​

Answer 1

Answer:

V

S

=

ρ

1

γ

air

p

V

S

′

=

ρ

2

γ

air

p

V

S

V

S

′

=

ρ

2

ρ

1

=

4×ρ

1

ρ

1

=

2

1

V

S

′

=V

S

/2

Answer 2

Explanation:

The velocity of sound is equal to the root of ratio of pressure to the density of the gas. So if the pressure becomes four times, the velocity of sound becomes twice of the initial velocity. It remains constant at constant temperature.

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