Thw apparent frequency of a note, when a listener moves towards a stationary source, with velocity of `40m//s` is `200 Hz`. When he moves away from the same source with the same speed, the apparent frequency of the same note is `160 Hz`. The velocity of sound is air is (in `m//s`)

The apparent frequency of a note is 200 Hz. When a listener is moving with a velocity of 40 ms^(-1) towards a stationary source. When he moves away from the same source with the same speed, the apparent frequency of the same note is 160 Hz. The velocity of sound in air in m//s is

The apparent frequency of a note is 200 Hz when a listener is moving with a velocity of 40 ms​^(-1) towards a stationary source. When he moves away from the same source with the same speed, the apparent frequency of the same note is 160 Hz. The velocity of sound in air (in m/s) is :-

The apaarent frequency of a note is 200 Hz when a listener is with a velocity of 40 ms^(-1) towards a stationary source. When he moves away from the same source with the same speed, the apparent frequency of the same note is 160 Hz. The velocity of sound in air in m/s is :

When the listener moves towards a stationary source with a velocity v_(1) m the apparent freqency of a note emitted by the source is f' When the listener moves away from the source with the same velocity, the apparent frequency of the note f/f'=3. If v the velocity of sound in air, the value of v//v_(1) is -

The apparent frequency of a note when an observer moves towards a stationary source with a velocity 20 m/s in 200 Hz . Calculate the actual frequency of a note . Calculate wavelength if velocity of sound is 350 m/s .

When the listener moves towards a stationary source with a velocity V_(L) , the apparent frequency of a note emitted by the source is f' . When the listener moves away from the source with the same velocity, the apparent frequency of the note is f" . Given f'//f"=3 and V as the velocity of sound in air, the value of V/V_(L) is