Question

60. The wavelength of a sound wave travelling in a solid
becomes one third when it propagates through air,
If the frequency of the wave remains constant, then
find the decrease in the velocity of the wave.​

Answer 1

Answer:

y= lambda

v=(f)y hence v1/v2=y1/y2

$\frac{v1}{v2 } = 3$

$v2 = \frac{v1}{3}$

Answer 2

Answer:

It is 2/3

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