Refraction of light happen due to change in velocity of light when travelling through different optical densities
Below is the ray diagram shows light rays from air to glass. Is the refracted ray correctly drawn?
Below shows ray diagram of incident ray, i, from glass to air. Is the refracted ray correctly drawn?
The green color shows the correct angles for incident ray, i and refracted ray, r
Choose the correct formula for Snell law
A.n = Sin 90 / Sin c
B.n = Sin i / Sin r
C.n = 1 / Sin c
D.n = Sin r / Sin i
Diagram shows angle of incident ray, i = 60 from air to plastic. Refractive index plastic, n = 1.49. Calculate angle of refracted ray, r
A.38.90
B.35.54
C.19.60
D.50.40
Calculate speed of light in plastic with refractive index, n = 1.49
A.1.01x10^8 m/s
B.3.0x10^8 m/s
C.4.0x10^8 m/s
D.2.01x10^8 m/s