1.

In a cloud, lightning and thunder are produced simultaneously. If thunder is heard by a man 5 seconds after the lightening is seen, how far the cloud is from the man? (Speed of sound in air = 340 m/s)

A. 1500 m
B. 1600 m
C. 1700 m
D. 1800 m
E. None of these
Answer» D. 1800 m


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