Class 10 Physics MCQs – Certification Test 982

Echo of Sound MCQs (Question 982) – App & e-Book Download

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MCQ 982: A marine survey ship sends a sound wave to the seabed which receives an echo after 2.5 s. The speed of sound in seawater is 1200 ms^-1. The depth of the sea is:

1200 m
1500 m
750 m
1000 m

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