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8th Class Science Sound Question Bank Sound

  • question_answer
                      Which of the following frequencies cannot be heard by human beings?

    A)  1000 Hz                               

    B)                         10,000 Hz                           

    C)                         100 Hz                                 

    D)                        1, 00, 000 Hz

    Correct Answer: D

    Solution :

    Human beings can hear only within the range of 20 Hz to 20 kHz. So, 100 kHz (1,00, 000 Hz) cannot be heard.


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