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Assume that light of wavelength 6000 Å i...

Assume that light of wavelength 6000 Å is coming from a star. What is the limit of resolution of a telescope whose objective has a diameter of 100 inch ?

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A 100 inch telescope implies that 2a=100 lamda `=6000Å=6xx10^(-5)cm`
then, `Deltatheta= (0.61xx6xx10^(-5))/(127)`
`=2.9xx10^(-7)"radians"`.
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