The eye-piece of an astronomical telescope has focal length of 10 cm. The telescope is focused for normal vision of distant objects when the tube length is 1.0 m. Find the focal length of the objective and the magnifying power of the telescope.

The eyepice of an astronomicasl telescope has a focasl length of 10 cm. The telescope is focussed for normal vision of distant objects when the tube length is 1.0 m. find the focal length of the bjective and the magnifying power of the telescope.

The eyepice of an astronomicasl telescope has a focasl length of 10 cm. The telescope is focussed for normal vision of distant objects when the tube length is 1.0 m. find the focal length of the bjective and the magnifying power of the telescope.

The eyepice of an astronomicasl telescope has a focasl length of 10 cm. The telescope is focussed for normal vision of distant objects when the tube length is 1.0 m. find the focal length of the bjective and the magnifying power of the telescope.

The objective of an astronomical telescope has a focal length of 80cm . The telescope is focused for normal vision of distant objects when the tube length is 1.0m .If the focal length of eye piece is f_(e) (in cm ) and magnifying power of telescope is m then the value of (f_(e))/(m) is :

An astronomical telescope has a length of 310 cm and a magnifying power of 30. The focal length of its objective is

A small telescope has an objective lens of focal length 144 cm and eye piece of focal length 6.0 cm. What is the magnifying power of the telescope ?

An astronomical telescope has an objective of focal length 20 cm and an eyepiece of focal length 4.0 cm. The telescope is focused to see an object 10 Km from the objective .The final image is formed at infinity. Find the length of the tube and the angular magnification produced by the telescope.