Question

When is a flip-flop said to be transparent?

(a) When the Q output is opposite the input

(b) When the Q output follows the input

(c) When you can see through the IC packaging

(d) When the Q output is complementary of the input

I got this question by my school teacher while I was bunking the class.

The origin of the question is Flip Flops in portion Flip-Flops of Digital Circuits

Answer 1

The correct option is (b) When the Q output follows the input

Easiest explanation: Flip-flop have the property of responding immediately to the changes in its inputs. This property is called transparency.