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JEE PHYSICS MCQ: OSCILLATIONS

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The equation

y=A \sin ^2(k x-\omega t)

represents a wave with:

View answer and explanation

Correct option: B

Amplitude

{A} / 2

, frequency

\frac{\omega}{\pi}

Option B is correct because using the trigonometric identity

\sin^2(x) = \frac{1}{2}[1 - \cos(2x)]

, the frequency becomes

\frac{\omega}{\pi}

and the amplitude becomes

\frac{A}{2}

.

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