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The function sin²(ω t) represents

Asked in JEE Main 2005 · Identifying SHM

Answer: (4) a periodic, but not simple harmonic motion with a period π/ω

Step-by-step solution

sin²ω t=(1-cos 2ω t)/2, so the varying term has frequency 2ω and the period is (2π)/(2ω)=π/ω.

The constant 1/2 keeps the displacement from ever going negative, so this paper counts it as periodic but not simple harmonic.

Why the other options are wrong

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