A converging lens 7.20cm in diameter has a focal length of 250mm . the resolutio

Question

A converging lens 7.20cm in diameter has a focal length of 250mm . the resolution is diffraction limited, how far away can an object be if points on it transversely 3.60mm apart are to be resolved (according to Rayleigh's criterion) by means of light of wavelength 600nm ? in m A converging lens 7.20cm in diameter has a focal length of 250mm . the resolution is diffraction limited, how far away can an object be if points on it transversely 3.60mm apart are to be resolved (according to Rayleigh's criterion) by means of light of wavelength 600nm ? in m

Explanation / Answer

Apply s/r = 1.22(wavelength)/D

(3.6 X 10^-3)/r = (1.22)(600 X 10^-9)/(.072)

r = 354 m

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