Assertion: A disc-shaped magnet is levitated | vedclass

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(A) Superconductors exhibit the Meissner effect,which means they expel magnetic fields from their interior when cooled below their critical temperatur

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) Superconductors exhibit the Meissner effect,which means they expel magnetic fields from their interior when cooled below their critical temperature $(T_c)$.Because of this,they act as perfect diamagnets.When a magnet is placed near a superconductor,the superconductor generates surface currents that create a magnetic field opposing the magnet's field.This results in a repulsive force that allows the magnet to levitate above the superconductor.Therefore,the Assertion is correct because the magnet levitates,and the Reason is correct because superconductors exhibit a repulsive force towards magnets due to the Meissner effect.

Assertion: $A$ disc-shaped magnet is levitated above a superconducting material that has been cooled by liquid nitrogen.
Reason: Superconductors repel a magnet.

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Assertion: $A$ disc-shaped magnet is levitated above a superconducting material that has been cooled by liquid nitrogen.Reason: Superconductors repel a magnet.