The difference between the apparent frequency of a source of sound as perceived by the observer during its approach and recession is 2 % of the frequency of the source. If the speed of sound in air is 300 ~ms ⁻¹ , then the velocity of the source is

Step-by-step solution

Given, speed of sound in air, c=300 ~ms ⁻¹ Difference between apparent frequency during approach and apparent frequency duifing recession =2 % Thus, frequency during approach - frequency during recession = 2 100 f₀ f₀ ( c+v c )-f₀ ( c-v c )= 2 100 f₀ where, c is speed of sound in air and v is the velocity of source. array llrl & & 2 v 300 & = 2 100 & v & =3 ~ms ⁻¹ array