PH-2238
Echoes and ultrasound
Physics · Secondary 4 · Medium · Echoes and ultrasound
A sound pulse is sent straight down to the sea floor and the echo is received 0.60 s later. The speed of sound in water is . What is the depth of the sea at this point?
- 300 m
- 450 m
- 900 m
- 180 m
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