Assertion: The ion cannot move with a speed beyond a certain limit in a cyclotron.
Reason: As velocity increases time taken by ion increases.

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

Time taken is independent of velocity and radius of path. However, maximum velocity will be given by `v_(max)=(qBR)/m` where `R` is radius of Dee's.