Question

Continuous time convolution is done from negative infinity to positive infinity.

(a) True

(b) False

The question was asked in an international level competition.

This question is from Continuous Time Convolution in portion Time-Domain Analysis of CT Systems of Signals and Systems

Answer 1

Right choice is (a) True

Explanation: Convolution is a superposition theorem hence we have to consider the signals from negative to positive infinity. We start at t, at−∞ and slide it all the way to +∞. Wherever the two functions intersect, we find the integral of their product.