defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series General Science Physics Wave

ಮಾನವರು ಕೇಳುವ ಶಬ್ದದ ವ್ಯಾಪ್ತಿಯು ಸರಿಸುಮಾರು ________-

1
20 Hz ನಿಂದ 2000 Hz
2
20 Hz ನಿಂದ 200 Hz
3
20 Hz ನಿಂದ   20000 Hz
4
2 Hz ನಿಂದ 2000 Hz
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