To obtain a magnified image at the distance of distinct vision $(D)$ using a simple microscope,the object should be placed:

When can more magnification of a compound microscope be obtained?

Which type of electromagnetic waves are used in an optical microscope? Why?

What is the magnifying power of a simple microscope of focal length $5 \ cm$,if the image is formed at the distance of distinct vision?

$A$ compound microscope is designed with two symmetric biconvex lenses. The objective lens is cut vertically,creating two identical plano-convex lenses. One of them is used in place of the original objective lens. To retain the same magnification while keeping the object distance unchanged,the tube length has to be

If the focal length of the objective lens and the eye lens are $4 \, mm$ and $25 \, mm$ respectively in a compound microscope,and the length of the tube is $16 \, cm$,find its magnifying power for the relaxed eye position.