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QAIPMT-2006-Ph-2435: NEET 2006 Physics - Class 11 AIPMT-2006-Ph-2435 Solution: The potential energy of a long spring when stretched by 2 cm is …
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
Multiple Choice Options
- A U/4
- B 4U
- C 8U
- D 16U
Step-by-Step Verified Solution
Potential energy of a spring
= 1 2 _ force constant _ (extension) 2
_ Potential energy _ (extension) 2
or, U 1 U 2 = ( x 1 x 2 ) 2 or, U 1 U 2 = ( 2 8 ) 2
_ U 1 U 2 = 1 16
_ U 2 = 16 U 1 = 16 U ( _ U 1 = U )