Bottom face of the glass cube is silvered as shown. A ray of light is incident on the top face of the cube a shown. Find the deviation of the ray when it comes out of the glass cube.

 

The distance of final image from $\mathrm{AB}$ as observed by observer $\mathrm{P}$ is:

A ray of light is incident upon an air/water interface ( it passes from air into water) at  an angle of $45°$. Which of the following quantities change as the light enter the water?

(I) wavelength

(II) frequency

(III) speed of propagation 

(IV) direction of propagation

A paraxial beam is incident on a glass $\left(\mathrm{n}=1.5\right)$ hemisphere of radius $\mathrm{R}=6\mathrm{cm}$ in air as shown. The distance of point of convergence $\mathrm{F}$ form the plane surface of hemisphere  is:

A concave spherical surface of radius of curvature $10\mathrm{cm}$, separates two medium $\mathrm{X}$ and $\mathrm{Y}$ of $\mathrm{R}.\mathrm{I}. 4/3$ and $3/2$ respectively. If the object placed along principal axis in medium $\mathrm{X}$, then: