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clc
// Given that
lambda = 6e-7 // wavelength of light in meter
theta = 2.44e-6 // separation angle of stars in radian
// Sample Problem 42 on page no. 2.54
printf("\n # PROBLEM 42 # \n")
a = (1.22 * lambda) / theta // calculation for diameter of telescope objective
printf("\n Standard formula used \n a = (1.22 * lambda) / theta. \n")
printf("\n Diameter of telescope objective = %f meter",a)
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