Question

10. How much phase change is introduced by a quarter wave plate
between ordinary and extra ordinary ray.​

Answer 1

Answer:

The quarter wavelength retardation plate is a common optical accessory for polarized light microscopy that operates by introducing a relative phase shift of 90 degrees between the orthogonal wavefronts (ordinary and extraordinary) passing through when the plate is illuminated with linearly polarized light.

Answer 2

Answer:

A quarter wave plate causes a 90-degree phase shift between regular and extraordinary rays.

Explanation:

When the plate is lit with linearly polarised light, the quarter wavelength retardation plate, a common optical accessory for polarised light microscopy, causes a relative phase shift of 90 degrees between the orthogonal wavefronts (ordinary and exceptional) passing through. The incident linearly polarised light vibrations are transformed into either elliptical or circularly polarised light by a phase shift of 90 degrees between the ordinary and extraordinary components. Quarter wavelength retardation plates are helpful for evaluating the optical path changes in birefringent specimens as well as for qualitatively analyzing conoscopic and orthoptic images.

The phase change introduced by a quarter wave plate between ordinary and extraordinary rays is 90 degrees.

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