A man can hear the sound of frequency

 

  •  A man can hear the sound of frequency

    1. 1 Hz,
    2. 1000 Hz,
    3. 200 Hz,
    4. 5 MHz,
Ans.    As you know that a man can hear the sound of frequency between 20 Hz and 20,000 Hz.
            Moreover, you know the sounds of frequencies less than 20 Hz i.e. sub sonic and more than 20,000             Hz i.e. ultrasonic, man can not hear. Therefore correct option is 2. 1000 Hz.

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