The angles of dip at the poles and the equator respectively are
(a) 30°, 60°
(b) 0°, 90°
(c) 45°, 90°
(d) 90°,0°
Correct option (d) 90°,0°
Explanation:
Since angle of dip at a place is defined as the angle δ, which is the direction of total intensity of earth'* magnetic field B makes with a horizontal line in magnetic meridian,
At poles B = Bv and Bv = B sinδ
