Q. The angle of dip at a certain place is $30^{\circ}$. If the horizontal component of the earth's magnetic field is $H$, the intensity of the total magnetic field is:

A

$\frac{ H }{2}$

B

$\frac{2 H }{\sqrt{3}}$

C

$H \sqrt{2}$

D

$H \sqrt{3}$

Solution:

Correct answer is (b) $\frac{2 H }{\sqrt{3}}$

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