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If a spring of stiffness 'k' is cut into...

If a spring of stiffness `'k'` is cut into two parts `'A'` and `'B'` of length `l_(A):l_(B)=2:3`, then the stiffness of spring `'A'` is given by

A

`(5)/(2) `K

B

`(3k)/(5)`

C

`(2k)/(5)`

D

k

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