Q.

Which of the following statements is incorrect about magnetic field lines?

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a

Magnetic field lines are directed from the north pole to the south pole.

b

Magnetic field lines are absent inside the magnet.

c

Magnetic field lines are concentrated near the poles.

d

Two magnetic field lines of a magnet never cut each other. 

answer is D.

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Detailed Solution

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All the statements are correct except 'Magnetic field lines are absent inside the magnet.'

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Magnetic field lines are present inside the magnet as well. They are directed from the south pole to the north pole inside the magnet.

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Which of the following statements is incorrect about magnetic field lines?