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The frequencies of four sound waves are given below. Which of these sound waves can be used to measure the depth of sea ? (a) 15,000 Hz (b) 10 kHz (c) 50 kHz (4) 10,000 Hz |
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Answer» The frequencies of four sound waves are given below. Which of these sound waves can be used to measure the depth of sea ? (a) 15,000 Hz (b) 10 kHz (c) 50 kHz (4) 10,000 Hz |
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