Question

State the typd of mirror preffered as (i) rear view mirrir in vehicles (ii) shaving mrror.Justify your answer giving tolwo reasons in each case

Answer 1

Convex mirrors give a virtual, erect, and diminished image of the objects placed in front of them. They are preferred as a rear-view mirror in vehicles because they give a wider field of view, which allows the driver to see most of the traffic behind him.Concave mirrors are used for shaving as it gives larger and erect image of the face.

Answer 2

convex mirror is used as rear view mirror because
1.it forms erect and diminished image of object
2.image formed is small in size hence field of view is increased
Concavemirror is used as shaving mirror because
1.when an object is placed close to a concave mirror(between pole and focus) erect and enlarged image is formed
2.so concave mirror gives a better view of the person shaving