Question

The sound waves whose frequency is 5000 hz travels in air and then hits the water surface what is the ratio of wavelength of water and air

Answer 1

in watee the ratio is low .. because air is all around open.

Answer 2

Given that,

Frequency of sound waves, f = 5000 Hz

To find,

The ratio of wavelength of water and air.

Solution,

The frequency on both the medium is same.

The speed of sound in air, $v=343\ m/s$

The speed of sound in water, v' = 1550 m/s

The ratio of its wavelength  in water and air is :  

$\dfrac{v'}{v}=\dfrac{\lambda'}{\lambda}\\\\\dfrac{\lambda'}{\lambda}=\dfrac{1550}{343}\\\\\dfrac{\lambda'}{\lambda}=4.31$

So, the ratio of wavelength of water and air is 4.31.

Learn more,

Sound wave

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