Question

What is the value of d[0], such that d[n] is the unit impulse function?

(a) 0

(b) 0.5

(c) 1.5

(d) 1

The question was posed to me by my school teacher while I was bunking the class.

This interesting question is from Useful Signals topic in section Signals and Systems Basics of Signals and Systems

Answer 1

Correct choice is (d) 1

Explanation: The unit impulse function has value 1 at n = 0 and zero everywhere else.