How to increase the resolving power of a tele | vedclass

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(C) The resolving power of an optical instrument is inversely proportional to the minimum angle of resolution. For a telescope,the resolving power is

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By increasing the aperture of the objective lens for a telescope and the numerical aperture for a microscope.

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(C) The resolving power of an optical instrument is inversely proportional to the minimum angle of resolution. For a telescope,the resolving power is given by $RP = \frac{D}{1.22 \lambda}$,where $D$ is the diameter of the objective lens and $\lambda$ is the wavelength of light. Thus,increasing the diameter $(D)$ increases the resolving power. For a microscope,the resolving power is given by $RP = \frac{2n \sin \beta}{1.22 \lambda}$,where $n \sin \beta$ is the numerical aperture. Thus,increasing the numerical aperture increases the resolving power. Therefore,increasing the aperture of the objective lens for a telescope and the numerical aperture for a microscope increases their respective resolving powers.

How to increase the resolving power of a telescope and a microscope?

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