MHT CET Physics question

Not in JEE Advanced syllabus

A bar of diamagnetic substance is placed in a magnetic field with its length making angle with the direction of the magnetic field. How will be bar behave?

(A)It will align itself parallel to the magnetic field
(B)It will align itself perpendicular to the magnetic fieldCorrect
(C)It will not show any change
(D)Its behavior cannot be predicted

Answer: (B)

Solution

A diamagnetic body is repelled by the stronger field region and so turns to the position of least field, i.e. its length becomes

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Question ID VK-080600