Topic: Electronics Engineering
A microwave receiving antenna on a satellite is pointing towards the earth. The antenna beamwidth is 50 degrees. The earth subtends 5 degrees at the satellite. What will be the noise temperature of the antenna?
- A. 30 degrees Kelvin
- B. 5 degrees Kelvin
- C. 300 degrees Kelvin
- D. 1000 degrees Kelvin
Explanation: Note: * Indicates that either options according to the question are wrong or statement in the question is wrong/data insufficient.