question_answer

Two stars are 10 light years away from the earth. They are seen through a telescope of objective diameter 30cm. The wavelength of light 600 nm. To see the stars just resolved by the telescope, the minimum distance between them should be (1 light year \[=9.46\times {{10}^{15}}\]m) of the order of:                                       [JEE ONLINE 10-04-2016]

A) \[{{10}^{8}}km\]

B) \[{{10}^{6}}km\]

C) \[{{10}^{11}}km\]

D) \[{{10}^{10}}km\]

Correct Answer: B

Solution :

[b]