
If lower half of the body of a lens is covered with black paper, the image produced by the lens will


Important Questions on Geometrical Optics
Two diverging lenses are kept as shown in the figure. The final image formed will be:

In the figure shown an object is placed in front of a thin lens of small aperture. The dotted curves represent the extensions of the respective curves in the figure. How many images will be formed finally.

In the figure a thin lens of focal length is shown. The lens is cut into two equal parts, and the parts are arranged as shown in the figure . An object of height is placed at distance of from the arrangement. The height of the final image will be:

In the figure the light is incident at an angle (slightly greater than the critical angle). Now keeping the incident ray fixed a parallel slab of refractive index is placed on surface (figure ).
Fig:(a) Fig:(b)




