PH-2280
Echoes and ultrasound
Physics · Secondary 4 · Medium · Echoes and ultrasound
A sound pulse is sent straight down from a ship to the seabed and the echo is received 0.40 s later. The speed of sound in seawater is 1500 m/s. What is the depth of the sea at this point?
- 150 m
- 300 m
- 600 m
- 750 m
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