If a source of light is moving away from a stationary observer, then the frequency of light wave appears to change because of

If the source is moving away from the observer, then the apparent frequency …………..

When the source is moving towards the stationary observer, the apparent frequency is given by

When a source of frequency n is receding away from a stationary observer with velocity v, then the apparent change in frequency due to Doppler’s effect is found to be Delta n_(1) and when the observer is reducing from a stationary source with the same velocity v, then the apparent change in frequency is Delta n_(2) , then -

At what speed should a source of sound move away from a stationary observer so that observer finds the apparent frequency equal to half of the original frequency?

A source producing sound of frequency 340 Hz is moving away from a stationary observer with a velocity of 34 ms^(-1) . The apparent change in wavelength of sound heard by the observer is (V = 340 ms^(-1))

If a source of frequency n moving with velocity v crosses a stationary observer, then the change in the frequency of sound heard by the observer will be (velocity of sound = V)

A source of sound when moves towards a stationary observer, then frequency of the sound heard by listener is more than actual frequency because the

When a source of sound moves towards a stationary observer the pitch of sound will appear to

when a source is going away from a stationary observer with the velocity equal to that of sound in air , then the frequency heard by observer is n times the original frequency . The value of n is