a light uses sound waves with a frequency of 20kHz to measure the depth of the sea. If the sound goes back and forth for 4 seconds what is the depth of the sea?
Answers
Answered by
3
The depth of the sea is 20000 × 4
= 80000 m
= 80 km
Answered by
1
Answer:
80कम
Explanation:
20000मल्टाइप्ली बी 4थन वे गेट 80कम
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