At a point A on the earth's surface the angle of dip, = +25^ . At a point B on the earth's surface the angle of dip, = -25^ . We can interpret that:

NEET 2019 Physics question

Not in JEE Advanced syllabus

At a point A on the earth's surface the angle of dip, . At a point B on the earth's surface the angle of dip, . We can interpret that:

(1)A and B are both located in the northern hemisphere.
(2)A is located in the southern hemisphere and B is located in the northern hemisphere.
(3)A is located in the northern hemisphere and B is located in the southern hemisphere.Correct
(4)A and B are both located in the southern hemisphere.

Answer: (3)

Solution

The angle of dip is the angle between the earth's total magnetic field and the horizontal. It is zero at the magnetic equator and at the poles. In the northern hemisphere the field lines point downwards into the earth, so the dip is taken as

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Question ID VK-092400