A telescope is used to observe two distant point sources transversely 2.40m apar

Question

A telescope is used to observe two distant point sources transversely 2.40m apart with light of wavelength 610nm . The objective of the telescope is covered with a slit of width 0.360mm . What is the maximum distance in meters at which the two sources may be distinguished if the resolution is diffraction limited and Rayleigh's criterion is used? in km A telescope is used to observe two distant point sources transversely 2.40m apart with light of wavelength 610nm . The objective of the telescope is covered with a slit of width 0.360mm . What is the maximum distance in meters at which the two sources may be distinguished if the resolution is diffraction limited and Rayleigh's criterion is used? in km

Explanation / Answer

Apply s/r = (wavelength)/a

(2.4)/r = (610 X 10^-9)/3.6 X 10^-4

r = 1416 m

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