Electronics and Communication Engineering - Signals and Systems

46.
In a oscillator, a sine wave generator starts at t = 0. It consist of
Pure sine wave
Pure cosine wave
Unity for t > 0
2∪(t) - 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
For a periodic waveform, the power spectral density and correlation function form
a Laplace transform pair
a Fourier transform pair
either (a) or (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.

Assertion (A): Laplace transform can be used to evalute integrals.

Reason (R): Laplace transform can be used to solve differential equations.

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.

49.
What about causality of the system transfer function of a discrete time system
uncasual
casual
casual and some specific point
Both b and c
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
If f(t) is an odd function, F(jω) =
Answer: Option
Explanation:
No answer description is available. Let's discuss.