This is nonsense. Do you mean parallax?
http://en.wikipedia.org/wiki/Parallax#Stellar_parallax
If this question was generated by your instructor, or your text, I recommend dropping the course immediately, as it will be a waste of your time.
Angular diameter of sun is 17" when measured from north pole and south pole of earth. Calculate distance of sun from earth if diameter of earth is 12800km.
2 answers
no kindly help me in solving it..i need the ans..