An astronimical telescope is to be designed to hve a magnifying power of 50 in normal adjustment. If the length of the tube is 102 cm, fid the powers of the objective and the eyepiece.

An astronimical telescope is to be designed to have a magnifying power of 50 in normal adjustment. If the length of the tube is 102 cm, find the powers of the objective and the eyepiece.

An astronimical telescope is to be designed to have a magnifying power of 50 in normal adjustment. If the length of the tube is 102 cm, find the powers of the objective and the eyepiece.

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.

(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 ?

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

If tube length Of astronomical telescope is 105cm and magnifying power is 20 for normal setting, the focal length of the objective is: