Question

At a place, the value of $B_H$ & $B_V$ are $0.4\times {10}^{-4}T$ and $0.3\times {10}^{-4}$respectively, the angle of dip is :

• A. tan${}^{-1}\left(0.75\right)$
• B. tan${}^{-1}\left(0.5\right)$
• C. tan${}^{-1}\left(0.8\right)$
• D. tan${}^{-1}\left(0.4\right)$

Answer 1

The correct option is A tan${}^{-1}\left(0.75\right)$

$\tan \theta =\frac{B_V}{B_H}$
$\tan \theta =\frac{0.3}{0.4}$
$\theta ={\tan }^{-1}\left(0.75\right)$