A) \[\sqrt{2}\,T\]
B) \[{{2}^{\frac{1}{4}}}T\]
C) \[{{2}^{-\frac{1}{4}}}T\]
D) \[{{2}^{-\frac{1}{2}}}T\]
Correct Answer: C
Solution :
Time period of combination \[T=2\pi \sqrt{\frac{2I}{\sqrt{2}\,M.H}}\] ?..(i) and time period of each magnet \[{T}'=2\pi \sqrt{\frac{I}{MH}}\] ??(ii) from (i) and (ii) we get \[{T}'=\frac{T}{{{2}^{1/4}}}={{2}^{-1/4}}T\]You need to login to perform this action.
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