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

(A) : The ion cannot move with a speed beyond a certain limit in a cyclotron. (R) : As velocity increases the mass of ion increases.

(A) : The ion cannot move with a speed beyond a certain limit in a cyclotron. (R) : As velocity increases the mass of ion increases.

What is ferromagnetic substance? Why it cannot be magnetised beyond a certain limit?

It is known that polishing a surface beyond a certain limit increases rather than decreases the frictional forces. Explain. ?

Assertion : As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases. Reason : Banking of roads will increase the value of limiting velocity.