When can more magnification of a compound mic | vedclass

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(B) The magnification of a compound microscope is given by the formula $M = M_o 	imes M_e$,where $M_o$ is the magnification of the objective lens and

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By decreasing the focal length of the objective lens.

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(B) The magnification of a compound microscope is given by the formula $M = M_o 	imes M_e$,where $M_o$ is the magnification of the objective lens and $M_e$ is the magnification of the eyepiece.For an objective lens,$M_o \approx \frac{L}{f_o}$,where $L$ is the tube length and $f_o$ is the focal length of the objective lens.For an eyepiece,$M_e \approx \frac{D}{f_e}$,where $D$ is the least distance of distinct vision and $f_e$ is the focal length of the eyepiece.Therefore,the total magnification $M \approx \frac{L}{f_o} 	imes \frac{D}{f_e}$.To increase the total magnification $M$,we need to decrease the focal lengths $f_o$ and $f_e$ of both the objective lens and the eyepiece.

When can more magnification of a compound microscope be obtained?

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