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A car is moving with a speed of 72 kmph ...

A car is moving with a speed of 72 kmph towards a hill. Car blows horn at a distance of 1800 m from the hill. If echo is heard after 10 seconds, the speed of sound (in m/sec) is

A

300

B

320

C

340

D

360

Text Solution

Verified by Experts

The correct Answer is:
C
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