A light ray changes enters Medium 2 from Medium 1. What would be the deviation if the refractive index of Medium 1 and Medium 2 are same?

Q. Parallel light enters from medium 1 to medium 2 for both the cases A and B as shown in figure below. Which of the statement(s) is/are true for the refracted rays in medium 2?
(Refractive index of medium 2 is higher than the refractive index of medium 1)

Q. Light of wavelength ${\lambda }_1$ enters a medium with refractive index $n_2$ from a medium with refractive index $n_1$. What is the wavelength of light in second medium?

Q. A light ray enters from medium A to medium B as shown in figure. Comment on the refractive index of medium B with respect to refractive index of medium A . [2 marks]

Q. A light ray passes from medium 1 to medium 2 as shown in the diagram. Calculate the refractive index of medium 2 with respect to medium 1.

Q. A light ray travels from medium 1 to medium 2 as shown in figure. The value of $\mu$, (refractive index of medium -1 ) will be :