Question

the refractive indices of quartz crystal for right handed and left handed circular polarized light of wavelength 762.9 nm are 1.5391 and 1.5392 respectively. the angle of rotation produced by crystal plate of thickness 0.5 nm is​

Answer 1

Answer:

11.8

Explanation:

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Answer 2

Explanation:

Given the refractive indices of quartz crystal for right handed and left handed circular polarized light of wavelength 762.9 nm are 1.5391 and 1.5392 respectively. the angle of rotation produced by crystal plate of thickness 0.5 nm is

• So the refractive indices are given.
• The refractive index of quartz crystal for right handed circular polarized light μ r = 1.5391
• The refractive index of quartz crystal for left handed circular polarized light μ l = 1.5392
• Wavelength λ = 762.9 x 10^-9
• Thickness t = 0.5 nm = 0.5 x 10^-9 m
• Now Angle of rotation = π / λ (μ l – μ r) t
•                                     = 3.14 / 762.9 x 10^-9 (1.5392 – 1.5391) x 0.5 x 10^-9
•                                      = 3.14 / 762.9 x 10^-9 x 0.0001 x 0.5 x 10^-9
•                                       = 0.00000020579
•                                      = 11.8 degree

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