Our earth behaves as it has a powerful magnet within it. The value of magnetic field on the surface of earth is a few tenth of gauss (1G = `10^(-4)` T) There are three elements of Earth’s magnetism
(i) Angle of declination
(ii) Angle of dip
(iii) Horizontal component of Earth’s magnetic field.
In the magnetic meridian of a certain place, the horizontal component of Earth’s magnetic field is 0.6 G and the dip angle is `53^@`. The value of vertical component of earth's magnetic field at this place is

Options

A. 0.8 G
B. 0.6 G
C. 1.0 G
D. 2.0 G

Answer

A

Explanation

`because tan theta`
`rArr B_V =B_n tan theta`
`=0.6=4/3`=0.8 G