An observer moves towards a stationary source of sound with a speed 1 5 t h of the speed of sound. The wavelength and frequency of the source emitted are λ and f respectively. The apparent frequency and wavelength recorded by the observer are respectively

Question

An observer moves towards a stationary source of sound with a speed 1 5 t h of the speed of sound. The wavelength and frequency of the source emitted are λ and f respectively. The apparent frequency and wavelength recorded by the observer are respectively, 1.2 f , 1.2 λ, 1.2 f, λ, f , 1.2 λ, 0.8 f , 0.8 λ

MARKS App · Accepted Answer

Apparent frequency, f ' = v + v 0 v f ⇒ f ' = v + 1 / 5 v v f = 1 . 2 f Wavelength does not change by motion of observer.

Search any question & find its solution

Looking for more such questions to practice?