Question

Define the magnifying power of a compound microscope when the final image is formed at infinity. Why must both the objective and the eyepiece of a compound microscope have short focal lengths? Explain.

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Updated on : 2022-09-05
Solution
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Magnifying power is defined as the angle subtends at the eye by the image to the angle subtended by the object.
To increase the magnifying power both objective and eye piece must have short focal lengths such as,

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