A) \[\sqrt{2}T\]
B) \[2\sqrt{2}T\]
C) \[4T\]
D) \[5T\]
Correct Answer: A
Solution :
The time period of spring \[T=2\pi \sqrt{\left( \frac{m}{R} \right)}\] ?(1) k = force constant of spring again \[T=2\pi \sqrt{\left( \frac{m}{k} \right)}\] \[=2\pi \sqrt{\left( \frac{2m}{k} \right)}(\because m=2m)\] ?(2) From equations (1) and (2) \[\therefore \] \[T=\sqrt{2}\,T\]You need to login to perform this action.
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