The image formed by an objective of a co...

The image formed by an objective of a compound microscope is

virtual and diminished

real and diminished

real and enlarged

virtual and enlarged

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The correct Answer is:

The image formed by the objective of a compound microscope is real and enlarged as object lies between focus and centre of curvature .

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In a compound microscope

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The objective lens of a compound microscope produces magnification of 10. In order to get an over all magnification of 100 when image is formed at 25 cm from the eye, the focal length of the eye lense should be (in cm)

(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 focused 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.

ALLEN-GEOMETRICAL OPTICS-EXERCISE-05 (A)

Which of the following is possible application of fibre optics?
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