NEET2017Physics-Waves

NEET 2017 Physics Doppler Effect MCQ Question

Type: MCQ-numerical-Medium-Class 11

Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is (velocity of sound 340 m/s)

A

350 Hz

B

361 Hz

C

411 Hz

D

448 Hz

Correct Answer

Option C

Detailed Explanation

Using the Doppler effect formula for sound, the frequency heard is calculated considering the relative motion of source and observer.

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