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QAIPMT-2003-Ph-2752: NEET 2003 Physics - Class 11 AIPMT-2003-Ph-2752 Solution: When a long spring is stretched by 2 cm, its potential energy…
When a long spring is stretched by 2 cm, its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be
Multiple Choice Options
- A U/5
- B 5U
- C 10U
- D 25U
Step-by-Step Verified Solution
If k be the spring constant, then
U = 1 2 _ k _ ( 2 ) 2 = 2 k
U f i n a l = 1 2 _ k _ ( 10 ) 2 = 50 k
_ U U f i n a l = 2 k 50 k = 1 25
_ U f i n a l = 25 U