In the experiment to verify inverse law, with deflection magnetometer the value of `("tan"theta_(A))/("tan"theta_(B)` will come out as

Options

A. 0.25
B. 0.5
C. 1
D. 2

Answer

D

Explanation

From tanget law `B=B_(H)"tan"theta`
In axial position for A
`B_(H)"tan"theta_(A)=(mu_(0))/(4pi)(2M)/(d^(3))`
In equatorial position for B
`B_(H)"tan"theta_(B)=(mu_(0))/(4pi)(M)/(d^(3))`
On dividing equation (1) and (2), we get
`("tan"theta_(A))/('tan"theta_(H))=2/1`