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Electronics and Communication Engineering - Signals and Systems

Exercise : Signals and Systems - Section 6
21.

Assertion (A):

Reason (R): An impulse has a very high magnitude but very short duration.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Energy spectral density is equal to for a signal g(t)
|G(f)|2
|g(t)|2
|G(f)|2/Bandwidth
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Given, Lf(t) = F(s) ⇒
which of the following expression are correct?
  1. L[f(t - a) ∪ (t - a)] = F(s)e-sa
  3. L(t - a)f(t) = as F(s)
Select the correct answer using the codes given below
1, 2, 3
1, 2, 4
2, 3, 4
1, 3, 4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
State space analysis is applicable to
time invariant systems
time varying systems
both time invariant and time varying systems
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
If Fn represents Fourier series coefficient of f(t), then Fourier series coefficient of f(t + t) =
Fne -jω0t
Fne jω0t
Fne jnω0t
Fne -jnω0t
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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