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Problems on Refraction
Problem 2.1:
As light moves from air (n
![]() Problem 2.2:
A transparent fiber of index of refraction 1.6 is surrounded (cladded) by a less dense plastic of index
1.5. At what angle must a light ray in the fiber approach the interface so as to remain within the fiber?
[Solution]
Problem 2.3:
A light ray in air approaches a water surface (n
![]() Problem 2.4:
By what angle do blue light (λb = 460 nm) and red light (λr = 680 nm) disperse upon entering
(from vacuum) a medium with N = 7×1038, ε = 1.94, and ω0 = 5.4×1015 Hz at
an incident angle of 20o (the electron charge is 1.6×10-19 Coulombs and its mass is 9.11×10-31 kilograms)?
[Solution]
Problem 2.5:
What is the rate of change of the speed of light with angular frequency in a dielectric medium?
[Solution]
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