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    science
    Grade-4-
    Easy

    Question

    If the rope is moved up and down faster, the distance between the crests will _____, so the frequency will _________.

    1. Increase, decrease
    2. Decrease, increase
    3. Decrease, decrease
    4. Increase, increase

    hintHint:

    The faster the rope the lower will be the wavelength.

    The correct answer is: Decrease, increase

      • If we move rope faster, then frequency will increase.
      • Therefore, if the rope is moved up and down faster, the distance between the crests will decrease so the frequency will increase.
      • So, the correct answer is decrease, increase. 

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