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A point mass M is attached to one end of...

A point mass M is attached to one end of a masslesa rigid non-conducting rod of length L. Another equal point mass is attached to the other end of the rod. The two particles carry charges `+q` and `-q` respectively. This arrangement is held I the region of uniform electric field E such that the rod makes a small `theta` (say about `5^(@)`) with field direction. Moment of inertia of the rod is I.
Now answer the question
The ratio `(theta)/(alpha)` is

A

`(I)/(EL)`

B

`I/(qEL)`

C

`I/(2qEL)`

D

`(2I)/(3qEL)`

Text Solution

Verified by Experts

The correct Answer is:
B
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