Question

An echo is heard after 1.5 sec from a hill. Find the distance of the hill from the observer. Speed of sound in air is 340 m/s.
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Answer 1

Answer:

2.8 sec is the answer

Explanation:

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Answer 2

Answer:

Correct option is B)

The distance traveled by sound for echo is:

2x=speed of sound×time of echo

x=

2

1

×330×1.5=247.5 m