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(a) Draw a labelled ray diagram showing ...

(a) Draw a labelled ray diagram showing the formation of a final image by a compound microscope at least distance of distinct vision.
(b) The total magnification produced by a compound microscope is 20. The magnification produced by the piece is 5. The microscope is focussed on a certain object. The distance between the objective and eyepiece is observed to be 14cm. If least distance of distinct vision is 20cm, calculate the focal length of the objective and the eye piece.

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The total magnification produced by a compound microscope is 20 . The magnification produced by the eye piece is 5 . The microscope is focussed on a certain object. The distance between the objective and eye piece is observed to be 14 cm . If least distance of distinct vision is 20 cm , calculate the focal length of objective and eye piece.

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For a total magnification of 175 from a compound microscope, the magnification produced by objective is 7 . What should be the magnification produced by eye piece ?

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