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Question

Physics Question on the earth's magnetic field

The angles of dip at the poles and the equator respectively are

A

30∘^{\circ}, 60∘^{\circ}

B

0∘^{\circ}, 90∘^{\circ}

C

45∘^{\circ}, 90∘^{\circ}

D

90∘^{\circ}, 0∘^{\circ}

Answer

90∘^{\circ}, 0∘^{\circ}

Explanation

Solution

Since angle of dip at a place is defined as the angle d, which is the direction of total intensity of earth?? magnetic field B makes with a horizontal line in magnetic meridian, At poles B = B and B = B sind ? sind = 1 ?? d = 90∘^{\circ} At equator B = B and B = Bcosd ? cosd = 1 ?? d = 0∘^{\circ}.