A radar receiver has a noise figure of 10 dB at 300 K having a bandwidth of 2.5 MHz. The minimum power it can receive is

1. 

A radar receiver has a noise figure of 10 dB at 300 K having a bandwidth of 2.5 MHz. The minimum power it can receive is
[A]. 3.45 x 10-15 W
[B]. 1.38 x 10-15 W
[C]. 7.5 x 10-15 W
[D]. 93.15 x 10-15 W

Answer: Option D

Explanation:

Pm = kT0Δf(F - 1) = 93.15 x 10-15 W.

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