Question

unit length on the Amp wire. 4. A ray of light in water is travelling parallel to the base of a glass tank. The tank has a 50° angle with the horizon. The index of light in air is 1.00, in water is 1.33, and in glass is 1.50 Light 154 S2 Determine the angle of the ray reflected off of the water glass interface. Determine the angle of refraction at the water glass interface. Determine the angle of refraction at the glass air interface. In which of the three materials (water, glass, air) does the light travel the fastest? In which of the three materials (water, glass, air) does the light travel the slowest?

Answer 1

water restal 34.750 air na) º=1.33 yo 3 50 SO 34.23 562 1 ) to water glors interface Angle of reflection Angie of incidence. Angle of incidence with Angle made by light say a normal 40° .'. Angle of reflection = Hol for water gran interface fini i-40 n = 15 D2 n, Sint 모 133 = ) 1.5 Sinuo 34.759 1,33 sing Angle = 34.75° of refraction

3) foc glans air interface sini is 34.750,2-1, n=1.5 sing - Sin 134,75°) 1.5 Sing ps 58.76" a Light travels faster in a medium whose refractive inden less Light travels slower in medium whose refractive index Light travels fastest in air Light travels slowest mye 4 in glass