Thursday 5 December 2013

For 12 th Simple Microscope

In simple microscope, only one converging lens is used.This lens acts as objective as well as eyepiece. The objects can be placed closer than D if they are observed through naked eye where as with the use of converging lens , objects can be placed closer than D as the lens will form it's image much behind where distance of the image will be greater or equal to infinity. But the lens used should have focal length much lesser than D. Following figures give some memorable results.

A very interesting question arise that when an object of height h is placed at the focal point of a simple microscope lens, what will be the angle formed by the image which is formed at infinity?









1 comment:

  1. A person is wearing a converging glass of power 2 D . Where is his near point. If he looks through a simple microscope of focal length 2.5 cm while wearing the 2D glass , what will be the magnifying power of the microscope if the object is placed at focus of the microscope ?

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