Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 21 (Q.No. 5)
Thermal noise is passed through an ideal low-pass filter having cut-off at fc = ωHz. The auto correlation value of the noise at the output of the filter is given as
Triangular function over the range
Gaussian over the range -∞ ≤ t ≤ ∞
A Delta function at t = 0
Sin c function over the range - ∞ ≤ t ≤ ∞
Answer: Option
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