Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The driver of a bus approaching a big wall notices that the frequency of his bus's horn changes from 
to 
when he hears it after it gets reflected from the wall. Find the speed of the bus if speed of the sound is 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Freq received by wall,
freq. after reflection, 
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