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In a deflection magnetometer which is ad...

In a deflection magnetometer which is adjusted in the usual way. When a magnet is introduced, the deflection observed is `theta` and the period of oscillation of the needle in the magnetometer is `T`. When the magnet is removed, the period of oscillation is `T_(0)`. The relation between `T` and `T_(0)` is

A

`T^(2)=T_(0)^(2)cos theta`

B

`T=T_(0) cos theta`

C

`T=(T_(0))/(cos theta)`

D

`T^(2)=(T_(0)^(2))/(cos theta)`

Text Solution

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The correct Answer is:
A
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