1.

The diameter of moon is \[3.5\times {{10}^{3}}\]km and its distance from the earth is \[3.8\times {{10}^{5}}\]km. If it is seen through a telescope whose focal length for objective and eye lens are 4 m and 10 cm respectively, then the angle subtended by the moon on the eye will be approximately    [NCERT 1982; CPMT 1991]

A.            15o
B.    20o  
C.            30o                                            
D.    35o
Answer» C.            30o                                            


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