Calculate the thickness of a quarter- wave plate for light of wavelength 4000Å for which `mu_(0)=1.5632 " and "mu_(e)=1.5541.`

Calculate the thickness of (i) a quarter wave plate (ii) a half-wave plate, given that mu_(e) =1.533 mu_(o) =1.544 lamda=5000 Å.

Calculate the phase difference introduced by a calcite crystal plate of thickness 30 micron between ordinary and extraordinary light of wavelength 6000Å. Given that mu_(0)=1.554 " and " mu_(e)=1.547 .

You have to design a half-wave plate of quartz crystal for light of wavelength 5800Å. Calculate the thickness of the plate rquired for the purpose if mu_(e)=1.5508 " and "mu_(0)=1.5418.

Calculate the thickness of a quartz quarter- wave plate for sodium light (lambda=5893Å) given that the index of refraction of quartz for ordinary and extraordinary rays are 1.5442 and 1.5533 respectively.

Why is the ratio of the velocities of light of wavelengths 4000 Å and 8000 Å in vacuum 1 : 1?

White light is incident normally on a thin glass plate of refractive index 1.5. Calculate the minimum thickness of the film for which the wavelength 4200 Å is absent for the reflected light.

Calculate the phase difference introduced by a quartz plate of thickness 20 micron between ordinary and extraordinary light. Given that mu_(0)=1.5443, mu_(e)1.5533" and " lambda=6000Å . Which light travels faster in quartz?

Light of wavelength 7200Å in air has a wavelength in glass (mu=1.5) equal to: