1. Tardigrade
  2. Question
  3. Physics
  4. An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency?

NTA AbhyasNTA Abhyas 2022

Solution:

$f_{app}=f_{0}\left(\frac{v + v_{0}}{v}\right)$
$\frac{f_{app} - f_{0}}{f_{0}}=\frac{v_{0}}{v}=\frac{\frac{v}{5}}{v}=\frac{1}{5}=20\%$