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

  • question_answer
      What is meant by intensity of sound? How is it different from loudness?

    Answer:

       Intensity of sound It is the amount of sound   energy passing each second through unit area. Loudness It is the measure of the sound energy  reaching the ear per second,                    Loudness is a measure of the response of the ear to the sound. Even when two sounds are of equal intensity, we may hear one as louder than the other, as our ear detects it better. Therefore, loudness depends both on the intensity of sound and the response of the ear to that sound,  


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