A sound wave whose frequency is 5000 Hz travels in air and then hits the water surface. The ratio of its wavelength in water and air is

A sound wave whose frequency is 5000 Hz travels in air and then hits t

1.	A sound wave whose frequency is 5000 Hz travels in air and then hits the water surface. The ratio of its wavelength in water and air is
Answer» `4.30` `0.23` `5.30` `1.23` Solution :4.30 Frequency of sound,f = 5000 Hz Velocity of sound in air,`v_(a) = 343 ms^(-1)` Velocity of sound in water,`v_(W) = 1480 ms^(-1)` The ratio of WAVELENGTH `(lambda_(a))/(lambda_(w)) = (v_(w))/(f) xx (f)/(v_(a)) = (1480)/(5000) xx (5000)/(343) = (1480)/(343)` `= 4.31`