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

In a cloud, lightning and thunder are produced simultaneously. If thunder is heard by a man 7 s after the lightning is seen, how far is the cloud from the man? (Speed of sound in air = 340 ms^-1)

1

1,500 m

2

2.38 km

3

1.69 km

4

1,800 m

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