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One end of a massless spring of spring constant `100 Nm^(-1)` and natural length 0.5 m is fixed and the other end is connected to a particle of mass 0.5 kg lying on a frictionless horizontal table. If the mass rotates at an angular velocity of `2 rad s^(-1)`, the elongation of the spring is approximately. 

A

4 cm

B

3 cm

C

1 cm

D

2 cm

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The correct Answer is:
C
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