Saved Bookmarks
| 1. |
Calculate the smallest angular separation between two stars which are just resolved by the telescope having objective lens of diameter 25 cm. Assume 555 nm as mean wavelength of light. |
|
Answer» Solution :SMALLEST angle RESOLVED by the telescope is given by the following formula : ` theta = (1.22 LAMBDA)/(alpha)` `implies theta = (1.22 XX 555 xx 10^(-9))/(0.25)` `implies theta = 2.708 xx 10^(-6) rad`. |
|