A source approaches at a speed equal to half the speed of sound. The observed frequency is:

  1. twice the source frequency
  2. half the source frequency
  3. 1.5 times the source frequency
  4. the same
Answer

A) twice the source frequency

fo = fs vv - v/2 = 2fs. SLO P-11-D-03 · Application

Physics MCQ · More Wave Intensity and the Doppler Effect MCQs · Practise