Assume that light of wavelength 6000 A0 is coming from a star . What is the limit of resolution of a telescope whose objective has diameter of 100 inch
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Solution
here D = 100in = 2.54m
lambda =6000 angstrom= 6 *( 10^-10) m
putting the formula, 1/theta = D/1.22lambda
We get theta nearly equals to 2.9 * (10^-7)radians.