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A spring of force constant K is cut in t...

A spring of force constant `K` is cut in two parts at its one third length. When both the parts are stretched by same amount, the work done in the two parts, will be `:-`

A

equal in both

B

greater for the longer part

C

greater for the shorter part

D

data insufficient.

Text Solution

Verified by Experts

The correct Answer is:
C
When a spring is cut into two parts eacth part has spring constant more then that of original spring. If `k=` spring constant & `l_(0)=` natural length, then for cur parts

If they are stretched by same amount then work done in shorter part eill be double than that in the case of longer part.
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