Statement of a problem № 10708


Two concentric circles of light emit light whose wavelength is 555 nm. The larger circle has a radius of 4.0 cm, and the smaller circle has a radius of 1.0 cm. When taking a picture of these lighted circles, a camera admits light through an aperture whose diameter is 12.5 mm. What is the maximum distance at which the camera can (a) Distinguish one circle from the other and (b) Reveal that the inner circle is a circle of light rather than a solid disk of light?

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