Question

formula of sound chapter class 9th physics​

Answer 1

velocity = frequency × wavelength

frequency = 1/ time period

Answer 2

Answer:

All formulae are as follows

$f=\frac{1}{T}$

frequency=1/Time period

$V=f$λ

wave velocity = frequency × wavelength

Speed of sound in medium=√(Elasticity/density)

Speed of sound in gas=√(γ × Pressure/Density)

$V_{t} =V_{0} +0.61t$

Vt=Speed at t degree Celcius

V0=speed at 0 degree

t=temperature

$V=\frac{d}{t}$

velocity=distance/time