The given diagram shows a ray of light travelling from medium X to medium Y.

Which of the following statements is not correct?

What will be the velocity and wavelength of light in a medium of refractive index $1.5$ if the wavelength of the light is $6000 \stackrel{\circ }{\mathrm{A}}$ in air medium?. Take the speed of light in air$=3\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$.

What is the relation between the refractive index of water with respect to air $\left({}_{a }\mu _w\right)$, and the refractive index of air with respect to water $\left({}_{w }\mu _a\right)$.

In the diagram shown above $n_1, n_2 \mathrm{and} n_3$ are refractive indices of the media $1,2 \mathrm{and} 3$ respectively. Which one of the following is true in this case?

If the refractive index of water with respect to air (${}_{a }\mu _w$)  is $\frac{5}{3}$.  Calculate the refractive index of air with respect to water (${}_{w }\mu _a$).

The refractive index of medium A is $1.5$ and that of medium B is $1.33$. If the speed of light in air is  $3\times {10}^8 \mathrm{m}/\mathrm{s}$, what is the speed of light in medium A and B respectively?

A ray of light is incident as shown. If A, B and C are three transparent media, then which among the following options is true for the given diagram?

A ray of light starting from air passes through medium A of refractive index $1.50$, enters medium B of refractive index $1.33$ and, finally enters medium C of refractive index $2.42$. If this ray emerges out in air from C, then for which of the following pairs of media the bending of light is least?

If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction $r \mathrm{and} v$ respectively. Which of the following is correct?

Fill in the right word to establish the correct relation.

Speed of light: $3\times {10}^8 \mathrm{m}/\mathrm{s}$:: speed of sound: _____ $\mathrm{m}/\mathrm{s}$. 

Choose from the following: $\left(1500/340\right)$