Calculate the critical angle for glass air surface if a ray of light which is incident in air on the glass surface is deviated through `15^@`, when the angle of incidence is `45^@`.

Calculate the critical angle for glass air surface if a ray of light which is nicident ni air on the glass surface is deviated through 15^(@) , when the angle of incidence is 45^(@) .

Calculate the critical angle for a glass-air surface,if a ray of light which is incident in air on the surface is deviated through 15^@ ,when its angle of incidence is 40^@ .

Determine the critical angle for a glass interface, if a ray of light, which is incident in air on the surface is deviated through 15^@ , when its angle of incidence is 40^@ .

Calculate the critical angle for a glass air interface, if a ray of light incident in air on the surface is deviated through 15^@ , when its angle of incidence is 40^@ .

(a) Figure below shows a parallel beam of monochromatic light incident on a convex sperical surface, radius of curvature R=30 cm, which separates glass (refractive). Find the distance of image formed. (b) A ray of light which is incident in air on the surface of a glass block is deviated through 15^(@) . The angle of incidence in air is 60^(@) . what is the angle of refraction in glass ? Also, claculate the critical angle for a glass-air interface.

If a ray of light is incident at a glass surface at the Brewster's angle of 60^(@) , then the angle of deviation inside glass is