Question

Ray Optics 2 Problem Statement A glass plate whose index of refraction is 1.56 is immersed in a liquid. The surface of the glass is inclined at an angle of 42.0 with the vertical. A horizontal ray in the glass is incident on the interface. When the liquid is a certain alcohol, the incident ray arrives at the interface at the critical angle. What is the index of refraction of the alcohol? Visual Representation • Draw a ray diagram • Draw a line normal to the boundary • Show the ray bending in the correct direction • Label angles of incidence and refraction measured from the normal Mathematical Representation . Start with Snell's law and/or the law of reflection • Substitute in the known values Solve for the desired unknown . Check units and assess if your answer is reasonable

Answer 1

The refractive index of alchohol is 1.043

to ANSWER: Refractive index of glass with respect alcholjol = all? Mg refractive index of glass Ma refraetive index of alehohol 1.56 X If here e is the critical angle made in denser medium by ray of light with the vertical On the surface by 42°, then, C = 42°. In this case, Sinea allg Sin122 0 1.56 251-56 x sin 92° = 1:043 So, the refractive index of alchohol is 1.043 CS Scanned with CamScanner