Rear view mirror is a device that allows the driver to see rear ward. It usually finds its place at the top of windscreen in side the cabin. This device is one of the most basic but essential safety devices in the vehicle. It provides assistance to the driver during overtaking, parking in reverse gear etc. Generally, vehicles also have a pair of mirrors attached to the body from outside. They are popular as ‘side mirrors’ or Outer Rear View Mirrors (ORVM) which serve the same purpose. Almost all modern cars mount their side mirrors on the doors-normally at Apillar rather than the wings (the portion of the body above the wheel well
(i) Areal image of an object is to be obtained.
The mirror required for this purpose is :
(a) convex mirror (b) concave mirror
(c) plane mirror (d) either convex or
concave mirror
(ii)A real image of an object is to be
obtained. The mirror required for this
purpose is :
(a) convex mirror (b)concave mirror (c) plane mirror (d) either convex or
concave mirror
(iii) A boy is standing in front of
and close to a special mirror. He
finds the image of his head bigger
than normal, the middle part of
his body of the same size, and his
legs smaller than normal. The
special mirror is made up of three
types of mirrors in the following
order from top downwards:
(a) Convex, Plane, Concave.
(b) Plane, Convex, Concave
(c) Concave, Plane, Convex.
(d) Convex, Concave, Plane.
Answer ( 1 )
(1) Ans: (b) Concave mirror
(2) Ans: (b) Concave mirror
(3) Answer. (c) Concave, Plane, Convex