Consider the receiver of Figure which consists of a ios.sy

Consider the receiver of Figure which consists of a ios.sy waveguide, low-noise RF amplifier, frequency down-converter mixer), and IF amplifier. The figure includes the noise figures and power gains of these four components. The antenna temperature is 50K.
(a) Calculate the equivalent noise temperature for each of the four components in Figure assuming a room temperature T = 290K.
(b) Calculate the effective noise temperature of the wholereceiver.