A) T
B) \[>\,T\]
C) \[<\,\,T\]
D) \[\ge \,\,T\]
Correct Answer: A
Solution :
The forces that act on the block are \[qE\]and mg. Since, \[qE\]and mg are constant forces, the only variable elastic force changes by \[kx\](where, \[x\] is the elongation in the spring). Unbalanced (restoring) force, \[F=-kx\] \[\Rightarrow \] \[-m{{\omega }^{2}}x=-kx\] \[\Rightarrow \] \[\omega =\sqrt{\frac{k}{m}}=T\]You need to login to perform this action.
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