
Only paraxial rays are considered for the formation of image in spherical mirrors because-

Important Questions on Reflection of Light
Object pin | Convex Lens | Convex Mirror | Image Pin |
22.2 cm | 32.2 cm | 45.8 cm | 71.2 cm |


A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface. A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :



Which of the following represents schematically the image correctly? (Note : letters and are used only to denote the endpoints of the lines.)






Column 1 | Column 2 | ||
(A) | (a) | Convex mirror | |
(B) | (b) | Concave mirror | |
(C) | (c) | Real image | |
(D) | (d) | Virtual image |

(Graphs are drawn schematically and are not to scale)


A point object is moving uniformly towards the pole of a concave mirror of focal length along its axis as shown below. The speed of the object is . At , the distance of the object from the mirror is . The average velocity of the image formed by the mirror between time and is:





A spherical mirror is obtained as shown in the figure from a hollow glass sphere, if an object is positioned in front of the mirror, what will be the nature and magnification of the image of the object? (Figure down as schematic and not to scale)





