A pulse of a sound is transmitted from a ship and the reflection from the...
PHYSICS
WAEC 2002
A pulse of a sound is transmitted from a ship and the reflection from the sea bed is recorded after 0.2s. Calculate the depth of the sea. [Take speed of sound in sea water = 1560ms-1]
- A. 312.0m
- B. 156.0m
- C. 78.0m
- D. 31.2m
Correct Answer: B. 156.0m
Explanation
x = \(\frac{vt}{2} = \frac{1560 \times 0.2}{2} = 156m\)
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