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प्रश्न
Which of the following sound frequencies cannot be heard by a human ear ?
(i) 10 Hz
(ii) 100 Hz
(iii) 10,000 Hz
(iv) 15 Hz
(v) 40,000 Hz
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उत्तर
The sound frequencies among the following that cannot be heard by human are 10 Hz, 15 Hz, and 40,000 Hz.
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