Microscope I simple microscope I compound microscope I magnifying lens I cbse I jee I neetI class 12I vikas sir

The compound (I) is

The compound (I) is:

The magnifying power of a converging lens used as a simple microscope is (1+D/f) . A compound microscope is a combination of two such converging lenses. Why don't we have magnifying power (1+D/f_0)(1+D/f_e) . In other words, why can the objective not be treated as a simple microscope but the eyepiece can?

A : Resolving power of a microscope can be increased by choosing a medium of higher refractive index between object and objective lens. R : To increase resolving power of microscope, usually on oil having R.I colse to that of objective glass is used.

The magnification produced by the objective lens of a compound microscope is 25. The focal length of eye piece is 5 cm and it forms find image at least distance of distinct vision. The magnifying power of the compound microscope is

The length of the compound microscope is 14 cm. The magnifying power for relaxed eye is 25 . If the focal length of eye lens is 5 cm , then the object distance for objective lens will be

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

A compound microscope uses an objective lens of focal length 4 cm and eye lens of focal length 10 cm . An object is placed at 6 cm from the objective lens. Calculate magnifying power of compound microscope if final image is formed at the near point. Also, calculate length of the tube of compound microscope.

Give one example each for (i) macroscopic quantiy and (ii) microscopic quanity.

The magnification produced by the objective lens and the eye lens of a compound microscope are 25 and 6 respectively. The magnifying power of this microscope is