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प्रश्न
The frequency which is not audible to the human ear is ______.
विकल्प
50 Hz
500 Hz
5000 Hz
50,000 Hz
MCQ
रिक्त स्थान भरें
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उत्तर
The frequency which is not audible to the human ear is 50,000 Hz.
Explanation:
The human audible range is about 20 Hz to 20,000 Hz. 50 Hz, 500 Hz and 5000 Hz all lie within this range, so they are audible. 50,000 Hz is above 20,000 Hz, so it is ultrasonic and not audible.
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