Question

The vertical component of earth's magnetic field at a place is 75% of the horizontal component. The value of angle of dip at that place is

• A. ${53}^0$
• B. ${37}^0$
• C. ${45}^0$
• D. ${60}^0$

Answer 1

The correct option is B ${37}^0$

Given :

$B_V=\frac{3}{4}\cdot B_H$

To find : $\delta$

Solution :

We know that $\tan \delta =\frac{B_V}{B_H}$

Using given information,

$\tan \delta =\frac{3B_H}{4B_H}$

Hence, $\delta ={\tan }^{-1}\left(\frac{3}{4}\right)$

Hence, $\delta ={37}^{\circ }$

The Correct Opt : {B}