Q.
The time variations of signals are given as in $A,\ B$ and $C$. Point out the true statement from the following.
A) $A,\ B$ and $C$ are analogue signals
B) A and B are analogue, but C is digital signal
C) A and C digital, but B is analogue signal
D) A and C are analogue but B is digital signal
Explanation
(d) As shown, we conclude that $A\ $and $C$ are analogue signals but $B$ is digital signal.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.