Question

W ni 82 01 o'z sin, sin 02 nz % Diff dmens deal % Diff 5 ni million ovedniowiednio skoold Questions ant more 1. What is the speed of light in Water and BK-7 glass? 0 coloridabro bottone. donneblom lupa tot loobumibos.od spare told to do xobai adoled 2. A light ray in air strikes water at an angle of incidence equal to 40°. If the index of refraction for water is 1.33, what is the angle of refraction? 11ാറി 10 baba 2000 33 3. A light ray in air is incident on 0.025 m thick plastic block at an angle of 30°. As the light ray emerges from the opposite side of the block parallel to its original path, how much is the light ray displaced from the original path? Sumo olup your own cobalto alyrs old sort

Answer 1

(2 ) using 0;= 40° nw=1.33 Snell's law of refraction ng hindi = ha fino -) I fin 400 = 1.33 find > Sina, = 0.4833 O2 = 28-1° (Angle of refraction) B) t= 0.025 m 0 :- 30° using Snell's law of refractions I sin 30o = 1.4 Sin O₂ - Suio,= 0.357 20.92° . Lateral displacement -t fin (0-02) 0.025 Siri (30-20.927 Cos (20.92) 0.004224 m 62- Coso. -