An astronomical telescope in normal adjustment hasa tube length of 93 cm and magnification (angular) of 30. If the eye-piece is to be drawn out by 3 c
An astronomical telescope in normal adjustment hasa tube length of 93 cm and magnification (angular) of 30. If the eye-piece is to be drawn out by 3 cm to focus a near object, with the final image at infinity, find how far away is the object and the magnification (angular) is this case.
5 views