If the latitude of a place is 30°, the pole star will be seen at an altitude of
A. 30° B. 0° C. 90° D. 60°
21we know that the pole star is directly above the North pole. Thus, if somebody is at the North pole (i.e altitude 90°), then it will be directly overhead (i.e altitude 90°) and if somebody is at the Equator (i.e atitude 0°), then it will be at the horizon (i..e altitude 0°).....thus at 30° latitude the pole star will be seen at an altitude of 30° i guess........but i m not sure of it....
1the positioning of pole star is constant wrt every latitude of earth.so it will not change for someone at north pole and someone at 30° lat.
also @iota it dosent make difference whether in u r 30°N or 30°S
p.s-- for this reason pole star was used as a compass by sailors in earlier days
21actually its a well known fact that latitude of a place is equal to the altitude of the pole star at that place........so answer will be 30° only
1hey where did you come to know about this well known fact that latitude of a place is equal to the altitude of pole star...???
21ok check this
http://books.google.co.in/books?id=N3DE3GAyqcEC&pg=PA23&lpg=PA23&dq=latitude+of+a+place+is+equal+to+the+altitude+of+pole+star&source=bl&ots=cxZY8hZSgZ&sig=kEwoV0kfV7xrbQXRo5Uwbcs3egA&hl=en&ei=9ZLtStHeHIWYsgO90-nhBw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAgQ6AEwAA#v=onepage&q=latitude%20of%20a%20place%20is%20equal%20to%20the%20altitude%20of%20pole%20star&f=false
11i googled n got this.
http://in.answers.yahoo.com/question/index?qid=20091018232636AAuqWuQ
11after seeing the above link i typed this in google
"latitude of place altitude of pole star equal"
the 1st link they will give is this ---
http://books.google.co.in/books?id=N3DE3GAyqcEC&pg=PA23&lpg=PA23&dq=latitude+of+a+place+is+equal+to+the+altitude+of+pole+star&source=bl&ots=cxZY8hZSgZ&sig=kEwoV0kfV7xrbQXRo5Uwbcs3egA&hl=en&ei=9ZLtStHeHIWYsgO90-nhBw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAgQ6AEwAA#v=onepage&q=latitude%20of%20a%20place%20is
