1.

Assertion (A) : If an electron, coming vertically from outer space, enters the earth's magnetic field, it is deflected towards west. Reason (R) : Electron has negative charge.

Answer»

If both ASSERTION and reason are true and the reason is the CORRECT explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false .
If the assertion is false but reason is true.

Solution :The direction of deflection is given by Fleming.s LEFT HAND rule.


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