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clc
//Given
no_fringe = 250 // Number of fringes observed through telescope
lambda1 = 4e-5// wavelength of incident light in cm
lambda2 = 6.5e-5 // wavelength of incident light in cm
//Sample Problem 14 Page No. 52
printf("\n # Problem 14 # \n")
printf(" \n Standard formula used \n 2*t = p*lambda")
p = no_fringe * lambda1 / (lambda2- lambda1)
t = p * lambda2 / 2
printf("\n Thickness of air film is %f cm. ", t)
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