Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 General Science Physics Wave

A person burned a firecracker in front of a cliff and heard its echo 5 s after it burst. The distance of the cliff from the person, if the speed of the sound is 340 m/s, is close to

1
1700 m
2
170 m
3
85 m
4
850 m
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