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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2006
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Q)

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is:-


( A ) $8U$
( B ) $\frac U 4$
( C ) $16U$
( D ) $4U$

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