Question

Will the Doppler shift in frequency be greater in air or water for source moving towards observer ?? Explanation required. Spammers will be reported.

Answer 1

Answer:

What happens when the source of the waves moves toward you, a stationary observer? Again, you encounter more waves per unit time than you did before so the frequency is shifted up. This time, though, the shift occurs because the wavelength has been lowered by the movement of the source.