When both the listener and source are moving towards each other, then which of the following is true regarding frequency and wavelength of wave obserseved by the observer?

When both the listener and source are moving towards each other, then which of the following is true regarding frequency and wavelength of wave observed by the observer?

Source of sound and observer are moving towards each other, the observer will hear

When the light source is moving towards an observer,

When the light source is moving towards an observer,

A source of sound is located in a medium in which speed of sound is V and an observer is located in a medium in which speed of sound is 2V. Both the source and observer are moving directly towards each other at velocity V/5 . The source has a frequency of f_(0) . (a) Find the wavelength of wave in the medium in which the observer is located. (b) Find the frequency received by the observer.

When a source of sound moves towards stationary observer,the wavelength of sound received by the observer

When source and listener move towards each other the apparent frequency is _________ than actual frequency.