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9th Class Science Sound Question Bank 9th CBSE Science Sound

  • question_answer
      A bat can hear sound at frequency upto 120 kHz. Determine the wavelength of sound in air at this frequency. Take speed of sound as 344 m/s.

    Answer:

       Velocity of the sound wave v = 344 m/s Frequency of sound wave v = 120 kHz = 120 x 103 Hz Wavelength of sound wave                    From  


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