Question

Physics Class 12 Question 2. The magnetic field of Earth can be modelled by that of a point dipole placed at the centre of the Earth. The dipole axis makes an angle of 11.3° with the axis of Earth. At Mumbai, ‘declination is nearly zero. Then, [NCERT Exemplar]
(a) the declination varies between 11.3° W to 11.3° E.
(b) the least declination is 0°.
(c) the plane defined by dipole axis and Earth axis passes through Greenwich.
(d) declination averaged over Earth must be always negative.

Answer 1

Answer:

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(b) the least declination is 0°.

Answer 2

Answer:

b. the least deckination is 0°

Explanation:

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