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  1. The distance between node and adjacent antinode is 30 cm. The wavelength is

    2. A.

     30 cm.
    B.

     90 cm.
    C.

     120 cm.
    D.

     60 cm.

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    Answer : Option D

    Explanation :

    Keeping in view that; the distance between node and adjacent antinode is 30 cm. The wavelength is 60cm. A node is a point on a standing wave where the amplitude is minimum while antinode is the point of maximum displacement.

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