In the magnetic meridian of a certain place, the horizontal component of earth's magnetic fied is `0.26 G` and the dip angle is `60^@`. Find
a. Vertical component of earth's magnetic field
b. the net magnetic field at this place

Explanation

To solve the problem, we need to find the vertical component of the Earth's magnetic field and the net magnetic field at a certain place given the horizontal component and the dip angle.

### Given:
- Horizontal component of Earth's magnetic field, \( B_H = 0.26 \, \text{G} \)
- Dip angle, \( \theta = 60^\circ \)

### Step 1: Find the Vertical Component of Earth's Magnetic Field
The relationship between the vertical component \( B_V \) and the horizontal component \( B_H \) in terms of the dip angle \( \theta \) is given by:
...