Question

•Why is a convex mirror used as a rear mirror in the automobiles? Illustrate your answer.

•You are provided a convex mirror , a concave mirror and a plane mirror .How will you distinguish between them, without touching them or using any other apparatus?

•Draw ray diagram to show the formation of images when an object is placed in front of a concave mirror (a) between the pole and focus point (b) between the centre of curvature and focus point and (c) at infinity.

$\huge{ \blue{\mathfrak{pls}} \: say \: }$
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Answer 1

Answer:

We prefer a convex mirror as a rear-view mirror in vehicles because it gives a wider field of view, which allows the driver to see most of the traffic behind him. Convex mirrors always form a virtual, erect, and diminished image of the objects placed in front of it.

Concave mirror

Convex Mirror

Made by silvering the outer surface of a part of the hollow glass sphere.

Made by silvering the inner surface of a part of the hollow glass sphere.

Converging in nature.

Diverging in nature.

Image may be real or virtual depending on the position of the object.

Image is virtual.

Image may be diminished, same size or magnified.

Image is diminished.

The examples of concave mirrors are the mirrors used in automobile head lights, reflecting telescopes, torch lights, etc.

The examples of convex mirrors are the mirrors used as rear side mirrors of vehicles, optical instruments, calling bell, etc.

sorry can't answer the third one