The equation $$y=Acos22$$$$π$$nt−$$2$$$$π$$xλ represents a wave with

Correct option is 1Amplitude A/2, frequency 2n and wavelength λ/2

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The equation $y = {Acos}^{2} (2 πnt - 2 π \frac{x}{λ})$ represents a wave with

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Amplitude A/2, frequency 2n and wavelength λ/2

Amplitude A/2, frequency 2n and wavelength λ

Amplitude A, frequency 2n and wavelength 2λ

Amplitude A, frequency n and wavelength λ

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detailed solution

Correct option is A

The given equation can be written as y=A2cos 4πnt−4πxλ+A2 ∵cos2θ=1+cos2θ2Hence amplitude = A2 and frequency =ω2π=4πn2π=2nand wave length =2πk=2π4π/λ=λ2.

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The equation y=Acos22πnt−2πxλ represents a wave with

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The equation $y = {Acos}^{2} (2 πnt - 2 π \frac{x}{λ})$ represents a wave with