The astronomical telescope consists of objective and eye-piece. The focal length of the objective is

The astronomical telescope consists off objective and eye-piece.The focal length of the objective is

In an astronomical telescope, focal length of eye piece is 5 cm and focal length of objective is 75 cm . The final image is formed at the least distance of distinct vision (=25 cm) from the eye. What is the magnifying power of the telescope ?

An astronomical telescope has a magnifying power of 10 . In normal adjustment, distance between the objective and eye piece is 22 cm . The focal length of objective lens is.

In an astronomical telescope the focal lengths of objective and eyepiece should respectively be

In an astronomical telescope , focal length of the objective is made

In an astronomical telescope, focal length of the objective is made