JEE Main 2019 — Waves and Sound Question with Solution
JEE Main 2019 (09 Apr Shift 2)
Question
Two cars A and B are moving away from each other in opposite directions. Both the cars are moving with speed of with respect to the ground. If an observer in car A detects a frequency of the sound coming from car B, what is the natural frequency of the sound source in car B?
(speed of sound in air )
(speed of sound in air )
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
From Doppler effect:
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This is a previous-year question from JEE Main 2019, covering the Waves and Sound chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.