Find the maximum magnifying power of a compound microscope having a 25 diopter lens as the objective, a 5 diopter lens as the eyepiece and the separation 30 cm between the two lenses. The least distance for clear vision is 25 cm.

Find the maximum magnifying power of a compound microscope having a 25 D lens as the objetcive, a 5D lens as the eye-piece and the separation 30 cm between the two lenses. The least distance for clear vision is 25 cm .

Magnifying power of a simple microscope A is 1.25 less than that of a simple microscope B. If the power of the lens used in B is 25 D, find the power of lens used in A. Given that distance of distinct vision is 25 cm.

Find the magnifying power of a compound microscope whose objective has a focal power of 100D and eye piece has a focal power of 16D when the object is placed at a distance of 1.1cm from the objective. Assume that the final image is formed at the least distance of distinct vision (25cm)

An object is to be seen through a simple microscope of focal length 12 cm. Where should the object be placed so as to produce maximum angular magnification? The least distance for clear vision is 25 cm.

The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25cm

Calculate the maximum magnifying power of a simple microscope consisting of a convex lens of focal length 5 cm . Distance of distinct vision is 25 cm .

The focal lengths of the objective and the eyepiece of an astronomical telescope are 20 cm and 5 cm respectively. If the final image is formed at a distance of 30 cm from the eye piece, find the separation between the lenses for distinct vision:

The magnifying powerof a compound microscope is 20 and the distance between its two lenses is 30 cm when the final image is at the near point of the eye If the focal length of eye-pfece is 6.25 cm, the focal length of objective is