Derive the expression for the total magnification of a compound microscope.Why both the objective and the eyepiece lens of a compound microscope must have short focal lengths?
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total magnification of a compound microscope= M = me x m0
me and mo are the magnifying power of objective lens and eye lens.
or M = L/fo ( 1 + D/fe)
L = length of telescope
fo = focal length of objective
fe= focal length of eye lens
The focal length of both the lenses are kept short to keep the magnifying power big.
me and mo are the magnifying power of objective lens and eye lens.
or M = L/fo ( 1 + D/fe)
L = length of telescope
fo = focal length of objective
fe= focal length of eye lens
The focal length of both the lenses are kept short to keep the magnifying power big.
Answered by
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Explanation:
total magnification of a compound microscope= M = me x m0
me and mo are the magnifying power of objective lens and eye lens.
or M = L/fo ( 1 + D/fe)
L = length of telescope
fo = focal length of objective
fe= focal length of eye lens
The focal length of both the lenses are kept short to keep the magnifying power big.
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