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

  • question_answer
      A student does the experiment on verifying the law of reflection of sound. He records the following values of the angle of incidence  and angle of reflection .
    S. No. 1 2 3 4 5
    Angle of incidence 30o 40o 45o 50o 60o
    Angle of reflection 60o 50o 45o 40o 30o
    Which reading/s among 1, 2, 3, 4 and 5 is/are correct?

    Answer:

       Only 3 is correct, as


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