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      Question

      If the distance between two consecutive crests is L,

      then the wavelength is given by______.
      A L Correct Answer Incorrect Answer
      B L/2 Correct Answer Incorrect Answer
      C L/4 Correct Answer Incorrect Answer
      D 2L Correct Answer Incorrect Answer

      Solution

      The distance between two consecutive crests is L. The number of waves is n = 2 We know that wavelength (λ) = 2 L/n Now by substituting we get = 2(L)/ 2 = L

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