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When two springs of spring force constan...

When two springs of spring force constant k and 2 k are connected in series then force constant becomes `k_s`, if they are connected in parallel, then force constant becomes `k_p`. Ratio `k_s//k_p` is

A

`2//9`

B

`1//2`

C

`2//1`

D

`1//3`

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