Q.
The refractive index of the material of the prism and liquid are 1.56 and 1.32 respectively. What will be the value of θ for the following refraction?
Using the formula μprism=μprismμliquid=1.561.32=1311 ??(i) Now, the condition for the total internal reflection, occurs when sinθ≥μ So, sinθ≥1311