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A man sets his watch by the sound of a s...

A man sets his watch by the sound of a siren placed at a distance 1 km away . If the velocity of sound is `330 m//s`

A

His watch is set 3s faster

B

His watch is set 3s slower

C

His watch is set correctly

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
`Time = (Distance)/(Velocity) = (1000)/(330) = 0.03s`
Sound Will be heard after 3.03. So his watch is set 3s, slower.
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PHYSICS GALAXY - ASHISH ARORA-WAVES -Numerical MCQs Single Options Correct
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