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23 Nov 2019
5. The critical angle for total internal reflection at a liquid-airinterface is 42.5 degrees.
(a) It a ray of light travelling in the liquid has an angle ofincidence at the interface of 35 degrees, what angle does therefracted ray in the air make with the normal?
(b) If a ray of light travelling in air has an angle of incidenceat the interface of 35 degrees, what angle does the refracted rayin the liquid make with the normal?
5. The critical angle for total internal reflection at a liquid-airinterface is 42.5 degrees.
(a) It a ray of light travelling in the liquid has an angle ofincidence at the interface of 35 degrees, what angle does therefracted ray in the air make with the normal?
(b) If a ray of light travelling in air has an angle of incidenceat the interface of 35 degrees, what angle does the refracted rayin the liquid make with the normal?
