Question

What kind of mirror is used in:
(a) Searchlight
(b) As a side view mirror in a car
(c) As a shaving mirror
(d) Vigilance mirror in a big shop

Answer 1

Hint: Think about the purpose and the necessities required for each purpose. A convex mirror is a diverging mirror, and a concave mirror is a converging mirror. The conditions and features of both are different. Just from the fact that they are either converging or diverging is some information in identifying the purpose of each.

Complete answer:
(a) Concave mirrors with enormous openings are utilized in searchlights. In searchlight, we need a strong parallel light emission for looking through objects. At the point when an article is put at the focal point of a curved mirror, the reflected beams are parallel to one another and furthermore parallel to the principal axis.

(b) Convex mirrors are used as side view mirrors in motor vehicles since they structure virtual, erect, and diminished pictures regardless of the distance of the item. The convex mirror assists the driver to survey huge spaces of the traffic behind him and he can easily identify the vehicle coming behind him.

(c) The shaving mirrors are used to see the expanded picture of the face. To see the bigger picture of the face we should use inward mirrors since they structure a virtual, erect, and enlarged picture when an item is set close to the mirror (in between the pole and focus)

(d) The convex mirror is used in shopping stores to watch the activities of the clients. This is because convex mirrors have an enormous field of view.

Note: The convex mirror is a diverging mirror and concave is a converging mirror but when it comes to lenses, the concave is a diverging lens and convex is a converging lens. Most people have the tendency to confuse the lenses and the mirrors.