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P.E. = 1/2 mω²x².

1. 1/2 mω²x²
2. 1/2 mω²x² when x = A/2
3. 1/2 mω²x² when x = A
4. 1/2 mω²x² when x = A/4

Correct answer: 1/2 mω²x²

Solution

The given expression P.E. = 1/2 mω²x² is the general formula for potential energy in simple harmonic motion, where x is the displacement from the mean position. It is valid for any value of x.

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