1.

An oscillating mass spring system has mechanical energy `1` joule, when it has an amplitude `0.1m` and maximum speed of `1ms^(-1)`. The force constant of the spring is (in `Nm^(-1))`A. `100 N//m`B. `200 N//m`C. `300 N//m`D. `50 N//m`

Answer» Correct Answer - B
`T.E_(max)=(1)/(2)KA^(2)`
`1=(1)/(2)xxKxx0.01`
`therefore K=(2)/(0.01)=200N//m`


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