Question

A band playing music at a frequency is moving towards a wall at a speed vb . A motorist is following the band with a speed vm. If v is the speed of sound, the expression for the **** frequency heard by the motorist is –

Answer 1

Correct option (C)

Explanation:

Let f1 he is freq. heard by metor cyclist after Reflection from wall

Let f2 is the freq. heard by motorcylist directly