a) The overall Noise Temperature (Te) of a 2-stage cascaded amplifier is given as 1541 deg K. The gain of the first stage is 29 dB and the Noise Temperature (Te 1) of the first stage is 1123 deg K. (0) Find the Noise Ratio, Noise Figure and the Noise Temperature of the second stage. (m) Also find the overall output S/N ratio, if the input S/N ratio of the cascaded receiver is 130. Assume the reference temperature is 32 deg C. (4 marks)