With the help of a neat labelled ray diagram, show the image formation by a compound microscope when the final image is formed at the least distance of distinct vision. Write the expression for its magnifying power in terms of parameters related to the microscope.
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With the final image formed at least distinct vision, magnifying power is,
m = -v0u01 + Dfe
For the image to be formed at infinity,
uё = fe
and
m = -v0u0.Dfe
By making focal length of the objective lens small, the magnifying power can be increased.
m = -v0u01 + Dfe
For the image to be formed at infinity,
uё = fe
and
m = -v0u0.Dfe
By making focal length of the objective lens small, the magnifying power can be increased.
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