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9th Class Science Sound Question Bank Sound IIT JEE Subjective Problems

  • question_answer
    The following graphs show the displacement verses distance of a pulse on a rope at two different times. Find the speed of the pulse.

    Answer:

    Distance travelled by the crest of the wave \[=3015=15cm.\] Speed of the pulse          \[=15/(105)\]                                                                 \[=15/5\]                                                                 \[=3cm/s=0.03\text{ }m/s.\]


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