Force constants of two springs are k1 an...

Force constants of two springs are `k_1` and `k_2` One end of a spring is connected with one end of the other. Equivalent force constant of the spring system will be

`(k_1+k_2)/2`

`2(k_1+k_2)`

`(k_1+k_2)/(k_1k_2)`

`(k_1k_2)/(k_1+k_2)`

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