NEETPhysicsProperties of MatterMCQ+4 / −1
When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L + ). The elastic potential energy stored in the extended wire is :
- AMgl
- BmgL
- CMgl
- DMgL
View written solutionFree
Correct answer: C
Elastic potential energy
U = ${1 \over 2}$ (work done due to gravity)
= ${1 \over 2}$Mgl
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