A compound microscope is fitted with an objective of focal length and an eyepiece of…

PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

A compound microscope is fitted with an objective of focal length

0.4\,\text{cm}

and an eyepiece of focal length

2.0\,\text{cm}

. The distance between the focal planes of the two lenses is

16\,\text{cm}

. Taking the least distance of distinct vision as

25\,\text{cm}

, calculate the approximate overall magnification when the final image is formed at infinity.