If gain of the critically damped system is increased, the system will behave as a) under damped b) over damped c) critically damped d) oscillatory

a) Under damped

Explanation:

Given that system is critically damped .And we have to find out the condition when gain is increased.

As we know that damping ratio given as follows

Where C is the damping coefficient and Cc is the critical damping coefficient.

So from above we can say that

From above relationship we can say when gain (K) is increases then system will become under damped system.