A rectangular coil of wire carrying a current is suspended in a uniform magnetic field. The plane of the coil is making an angle of `30^(@)` with the direction of the field and the torque experienced by it is `tau_(1)` and when the plane of the coil is making an angle of `60^(@)` with the direction of the field the torque experienced by it is `tau_(2)`. Then the ratio `tau_(1):tau_(2)` is

Options

A. `1:sqrt(3)`
B. `sqrt(3):1`
C. `1:3`
D. `3:1`

Answer

2

Explanation

`tau = BAIncos theta`