Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 19 - Optical Instruments > A compound microscope has a magnification 30. The focal length of eyepiece is 5 cm. If the final image is formed at least distance of distinct vision (25 cm). Find the magnification produced by the objective is

A compound microscope has a magnification 30. The focal length of eyepiece is 5 cm. If the final image is formed at least distance of distinct vision (25 cm). Find the magnification produced by the objective is

A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification the focal length of the lens should be