USES OF MIRRORS

Plane Mirror i. It is used as a looking glass. ii. It is used for seeing the back of a head in barber's shop. iii.It is used in deviating the path of the light. iv. It is also used in periscope ,kaleidoscope ,etc.

Concave Mirror (i). It is used as a shaving glass.When the concave mirror is help quite to the face (face is between focus and pole), then an erect ,magnified and vertical image is formed behind the mirror,hence small beard seems large, and so it becomes easy to shave. (ii).Doctors use concave mirror for examining internal part of the ear,nose or throat to throw a narrow and sharp beam of light into the affected part so that he can easily see the affected part. (iii).It is commonly used in reflecting telescopes and search light. (iv).Scattered radiation can be focused at a point by concave mirror .The scattered radiation of sun can be focused and then burn a thing. (v).It is also usedbin headlight of a bus,truck ,etc. as a reflector .The source of light is kept at or a little behind the focus of the mirror. (vi). It is used in table lamp for converging of light over limited area. Convex Mirror (i). It is used in a car to view rear objects.Since the image formed in the convex mirror is always virtual,erect and diminished.The field of view of the mirror is very large with respect to plane and concave mirror.That is why it acts as the view finder and is mounted in front of the driver. (ii). It is used in street lamp in order that light can be diffused over an extended area.