Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The driver of a bus approaching a big wall notices that the frequency of his bus's horn changes from 
to 490Hz 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
JEE Main 2020
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