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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 | |