Teaching Bihar D.El.Ed Mock Test Series 2024-25 General Science Physics Wave

ਬਾਲਗ ਮਨੁੱਖਾਂ ਲਈ ਸੁਣਨਯੋਗ ਸੀਮਾ ਹੈ:

1
20 Hz ਤੋਂ ਘੱਟ
2
20 ਤੋਂ 20,000 Hz
3
21,000 ਤੋਂ 50,000 Hz
4
100 ਤੋਂ 120 kHz
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