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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
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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