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10 March, 02:30

For both waves on strings and sound waves in tubes, For both waves on strings and sound waves in tubes,

A. The mode number is independent of the wavelength.

B. A higher mode number means a shorter wavelength.

C. A higher mode number means a longer wavelength.

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Answers (1)
  1. 10 March, 02:33
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    option (B) is correct.

    Explanation:

    frequency is directly proportional to the speed of wave and inversely proportional to the wavelength.

    For string

    frequency, f = v/λ

    for tube

    frequency ∝ 1 / λ

    So, we can say that the frequency is inversely proportional to the wavelength.

    thus, the higher the mode means shorter the wavelength.
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