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clear
//
//
//
//Variable declaration
lamda=589.3*10**-9 //wavelength(m)
mewe=1.65833 //refractive index of e-ray
mew0=1.48640 //refractive index of o-ray
//Calculation
t1=lamda/(2*(mewe-mew0)) //thickness of half wave plate(m)
t2=lamda/(4*(mewe-mew0)) //thickness of quarter wave plate(m)
//Result
printf("\n thickness of half wave plate is %0.7f mm",t1/10**-3)
printf("\n thickness of quarter wave plate is %0.6f mm",t2/10**-3)
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