Q .     The ratio of displacement to amplitude when kinetic energy of a body performing linear S.H.M. is four times its potential energy is :

MHCET 2013
A

`\pm\frac{1}{5}`

B

`\pm\frac{1}{\sqrt 5}`

C

`\pm\frac{2}{5}`

D

`\pm\sqrt{\frac{3}{5}}`

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