Image Formation

Convex Mirror

There are only two possibilities of position of object in the case of a convex mirror, i.e. object at infinity and object between infinity and pole of a convex mirror.

Object at infinity: When the object is at the infinity, a point sized image is formed at principal focus behind the convex mirror.

object at infinity convex mirror

Fig: Object at infinity

Properties of image: Image is highly diminished, virtual and erect.


Chapter List


Object between infinity and pole: When the object is between infinity and pole of a convex mirror, a diminished, virtual and erect image is formed between pole and focus behind the mirror.

object between infinity and pole convex mirror

Fig: Object between infinity and P

Properties of image: Image is diminished, virtual and erect.


Positions and Nature of Image in Convex Mirror
Position of ObjectPosition of ImageSize of ImageNature of Image
At infinityAt F, behind mirrorHighly diminishedVirtual and erect
Between infinity and PBetween F and P, behind mirrorDiminishedVirtual and erect

Uses of Concave Mirror:

Uses of Convex Mirror:



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