Login to track your progress, bookmark questions, and view history.
Practice over 1000+ GATE-level questions from this topic!
Designed to match the latest GATE pattern with topic-wise precision, difficulty tagging, and detailed solutions.
Q#1
LTI Systems
GATE EC 2025
MCQ
+1 mark
-0.33 marks
Consider the discrete-time system below with input 
and output 
. In the figure, 
and 
denote the impulse responses of LTI Subsystems 1 and 2, respectively. Also, 
is the unit impulse, and 
.
Assuming 
, the overall system (denoted by the dashed box) is 
_________.
linear and time invariant
linear and time variant
nonlinear and time invariant
nonlinear and time variant
Explanation:
We see that:
o/p has a constant term in addition, system fails Superposition (additivity), & hence is non linear
{Reason: 
is linear and 
is non-linear}
- Delay
by 
Thus, system is time variant
Login to keep track of your progress with the tool with daily goals, questions preparation and more.
Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Electronics and Communications
Total Questions
Attempted
% Attempted
Correct
% Correct
Login to keep track of your progress with the tool with daily goals, questions preparation and more.
Login to track your progress, bookmark questions, and view history.