Assertion : The magnet tend to become weaker if left free for sometime.
Reason The magnets should be kept in magnetic keepers.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. If both assertion and reason are true but reason is not the correct explation of assertion.
C. If assertion is true but reason is false
D. If assertion is false but reason is true.

Answer

A

Explanation

Since the magnet lose their power if they are left free so they are stored in magnets keepres in which tow bar magnets are kept in pairs separated by a wooden pieces with unlike poles alongside each other .