A beam of light enters from air to glass. If the speed of light in air is 3 x 10^8 m/s and in glass is 2 x 10^8 m/s, calculate the refractive index of glass with respect to air.

If the refractive index of water is 1.33 and the refractive index of glass is 1.52, find the critical angle between water and glass.

A. 61.044°

B. 62.4352°

Which of the following statements is true about the refractiveindex of glass?



a. Refractive index of glass for all colors of light is thesame.

b. Glass has a greater refractive index for blue than forviolet.

c. Glass has a greater refractive index for violet color thanred.

d. Glass has a greater refractive index for red color than violet.

A light ray strikes a glass plate while traveling in water making an angle of incidence of 51.5°; some part of the light beam is reflected and some part is refracted. If the angle by the reflected and refracted portions is 91.4° with each other, Calculate the refractive index of glass.