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Assertion : If a proton and an alpha-par...

Assertion : If a proton and an `alpha`-particle enter a uniform magnetic field perpendicularly, with the same speed, then the time period of revolution of the -particle is double than that of proton.
Reason : In a magnetic field, the time period of revolution of a charged particle is directly proportional to mass.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

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

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
B
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