A paraxial beam is 7 in air as shown eam is incident on a glass (n = 1.5) hemisphere of radius R=6 hown. The distance of point of convergence F from the plane face of hemisphere is :- = -15 q=2 / (B) 5.4 cm (D) 8 cm U2 = C) 18 cm Ay 12 cm

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

A parallel beam of light enters a glass hemisphere perpendicular to the flat face, as shown in Fig. 1.69. The radius is $$ R = 6.00 \,cm $$ and the index of refraction is $$ n = 1.560 $$. Determine the point at which the beam is focussed. (Assume paraxial rays).

A glass hemisphere of radius 10 cm is placed in air. A point object P is placed at distance 10 cm from curved surface.

A small object placed in air at 24 cm from convex surface of a rod of glass (n = 1.5) of length 2R has a convex hemispherical surface with radius of curvature R = 8 cm and a flat surface(figure). Find the final distance of the image (in cm) from the plane surface.

A beam of diameter ${}^{\prime }{d}^{\prime }$ is incident on a glass hemisphere as shown in the figure. If the radius of curvature of hemisphere is very large in comparison to $d$, then the diameter of the beam at the base of hemisphere will be: