Light Image Formation by Convex Mirror class 10 science NCERT

Image Formation by 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.


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 Object Position of Image Size of Image Nature of Image
At infinity At F, behind mirror Highly diminished Virtual and erect
Between infinity and P Between F and P, behind mirror Diminished Virtual and erect

Uses of Concave Mirror:

Uses of Convex Mirror:



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