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Subjects
Science CBSE
Class 9
Sound
Textbook based HOTS II
32.
Multiple choice question XXXII
Exercise condition:
2
m.
A submarine emits a sonar pulse, which returns from an underwater cliff in \(1.02\ s\). If the speed of sound in salt water is \(1531\ m/s\), how far away is the cliff?
\(391\ m\)
\(781\ m\)
\(674\ m\)
\(1562\ m\)
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