Angles Of Dip At Two Places Are 30в° And 45в°

The angles of dip at two places are 30° and 45°. The ratio of horizontal components of earth’s magnetic field at the … √2 (c) 1…

Answers:

The correct option (a) √3 : √2

Explanation:

 δ1 = 30°

δ2 = 45°

 Horizontal component of earth’s magnetic field,H1 = B cosδ1

H2 = B cosδ2

 ∴ (H1/H2) = [(cosδ1)/(cosδ2)]

= [(cos 30)/(cos 45)]

=  [(√3/2)/(1/√2)]

 = (√3/2) × √2 = √(3/2)