What is the wavelength of a longitudinal wave if the distance between the 5th rarefaction and the 6th rarefaction is 25 cm?

25 cm

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50 cm

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40 cm

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20 cm

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Solution

The correct option is A 25 cm
The wavelength of a longitudinal wave is defined as the distance between two successive compressions or rarefactions. As given, the distance between the 5th and 6th rarefaction is 25 cm, therefore the wavelength of the wave will be 25 cm.

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