How will the magnifying power of an Astronomical telescope be affected on increasing
(i) the focal length and
(ii) the aperture of its objective

Define Magnifying Power of a simple astronomical telescope.

The magnifying power of a telescope can be increased

The magnifying powers of astronomical telescope and terrestrial telescope same, why ?

The magnifying power of an astronomical telescope is 8 and the distance between the two lenses is 54 cm. The focal length of eye lens and objective will be respectively.

(a) Draw a labelled diagram of an image of a distant object formed by a refracting astronomical telescope in normal adjustment. Write (do not derive) an expression for its magnifying power. (b) An aestronomical telescope set for normal adjustment has a magnifying power 10 . If the focal length of the objective is 1.20 m, what is the focal length of the eyepiece ?

Magnifying power of an astronomical telescope is M.P. If the focal length of the eye-piece is doubled, then its magnifying power will become

An astronomical telescope of ten-fold angular magnification has a length of 44 cm . The focal length of the objective is

The minimum magnifying power of an astronomical telescope is M. If the focal length of its eye-lens is halved, the minimum magnifying power will become:

The magnifytion power of the astronomical telescope for normal adjustment is 50cm. The focal length of the eyepiece is 2cm. The required length of the telescope for normal adjustment is

The magnifying power of an astronomical telescope for relaxed vision is 16 and the distance between the objective and eyelens is 34 cm. Then the focal length of objective and eyelens will be respectively