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The effective spring constant of two spr...

The effective spring constant of two spring system as shown in figure will be

A

`k_(1)-k_(2)`

B

`k_(1)+k_(2)`

C

`k_(1)k_(2)//k_(1)-k_(2)`

D

`k_(1)k_(2)//k_(1)+k_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) When external force is applied, one spring gets edtedded and another gets contracted by the same distance, hence force due to two springs act in same direction.
i.e., `F=F_(1)+F_(2)`
`-kx=-k_(1)x-k_(2)x`
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