Question

sound waves of wave lenght X travel from a medium in which velocity is V m/s into another medium in which if velocity is 3m/s is the wavelength of sound lambda in the second medium.

Answer 1

(Question is 3V m/s not 3 m/s)!


When sound travels from one medium to another, both its velocity and wavelength undergo changes. ... Velocity of sound is directly proportional to the wavelength. Thus, if the velocity of sound doubles when it travels from one medium to another, its wavelength also doubles.


When it becomes 3 times wavelength also becomes 3 times so wavelength is 3 lampda