Assertion: Cyclotron is a device which is used to accelerate the position ions.
Reason: Cyclotron frequency depends upon the velocity.

Options

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

Answer

C

Explanation

Cyclotron is suitable for accelerating heavy charged particles such as proton. `alpha`-particle and positive ions. In a cyclotron, the positive ions cross agin and again the same alternating (ration frequency) electric filed. Cyclotron is also known as magnetic resonance accelerator. Cyclotron frequency is given by
`v=1/T=(Bq)/(2pim)` . It is obvious that cyclotron frequency does not depend upon velocity of charged particle.