Geometrical OpticsHard
Question
A ray of light a liquid of refractive index 1.4 approaches the boundary surface between the liquid and air at an angle of incidence whose sine is 0.8 Which of the following statement is correct about the behaviors of the light ?
Options
A.It impossible to predict the behavior of the light ray on the basis of the information supplied.
B.The sine of the angle of refraction of the emergent ray will be less than 0.8
C.The ray will be internally reflected
D.The sin of the angle of refraction of the emergent ray will be greater than 0.8
Solution
From Snell’s law 1.4 × sin x = 1 sin r
1.4 × 0.8 - sin r > 1 (which is not possible)
⇒ Ray will not refract but it has total internal reflection. Hence (C)
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A light ray travelling in air is incident vertically on one face of a right angled prism with a refractive index μ ...There are two plane mirror with reflecting surfaces facing each other. Both the mirror are moving with speed v away from...A ray OP of monochromatic light is incident on the face AB of prismABCD near vertex B at an incident angle of 60o (see f...n the ideal double-slit experiment, when a glass-plate (refrective index 1.5) of thicness t is introduced in the path of...A concave mirror of focal length f1 is placed at a distance of d from a convex lens of focal length f2. Abeam of light c...