Question

Study the data given below showing the focal length of three concave mirrors A, B and C and the respective distances of objects placed in front of the mirrors : | Case | Mirror | Focal Length (cm) | Object Distance (cm) | |------|--------|-------------------|---------------------| | 1 | A | 20 | 45 | | 2 | B | 15 | 30 | | 3 | C | 30 | 20 |

An object is placed at a distance of 30 cm in front of a concave mirror of focal length 20 cm. Use mirror formula to determine the position of the image formed in this case.

A highly polished surface such as a mirror reflects most of the light falling on it. In our daily life we use two types of mirrors — plane and spherical. The reflecting surface of a spherical mirrors may be curved inwards or outwards. In concave mirrors, reflection takes place from the inner surface, while in convex mirrors reflection takes place from the outer surface.

State laws of reflection of light.