1.

If Sn is the power associated with each frequency component and S(f) is the sum of all these powers, normalised power spectral density is

A. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/15-206-1.png">
B. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/15-206-2.png">
C. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/15-206-3.png">
D. none of these
Answer» B. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/15-206-2.png">


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