As shown in the figure, two light spring...

As shown in the figure, two light springs of force constant `k_(1)` and `k_(2)` oscillate a block of mass m. Its effective force constant will be

`k_1 k_2`

`k_1 + k_2`

`(1)/(k_1)+ (1)/(k_2)`

`(k_1 k_2)/(k_1+ k_2)`

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