The distance between a crest and an adjacent trough is

λ

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\frac{λ}{2}

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2 λ

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\frac{3 λ}{2}

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Solution

The correct option is B $\frac{λ}{2}$
Distance between crest to crest is $λ$ (wavelength). So the distance between the crest and its adjacent trough is half of the wavelength i.e. $\frac{λ}{2}$ .

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The distance between a crest and an adjacent trough is

The correct option is B λ2Distance between crest to crest is λ (wavelength). So the distance between the crest and its adjacent trough is half of the wavelength i.e. λ2.

The correct option is B $\frac{λ}{2}$
Distance between crest to crest is $λ$ (wavelength). So the distance between the crest and its adjacent trough is half of the wavelength i.e. $\frac{λ}{2}$ .