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Magnetism and Matter · Question 10

NEET (UG) 2019MCQEasy📈 Topic in 0% papers+4−1
1

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 :

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

Answer

(2) A is located in the northern hemisphere and B is located in the southern hemisphere.

Solution

Angle of dip is the angle made by the earth's total magnetic field with the horizontal.

In the northern hemisphere the north pole of the dip needle dips downwards; this is taken as positive dip.

In the southern hemisphere the south pole of the dip needle dips downwards (north pole points up); the dip is negative.

= +25 A is in the northern hemisphere; = -25 B is in the southern hemisphere.

Answer: (2)

Out of syllabusNEET (UG) 2019

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10

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