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प्रश्न
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
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उत्तर
The kinds of SPHERICAL MIRRORS are :
- CONCAVE MIRROR
- CONVEX MIRROR

CONCAVE MIRROR: Silvered surface is away from the centre of curvature and focal length is negative, i.e. reflecting surface is towards the centre of curvature.
CONVEX MIRROR: Silvered surface is towards the centre of curvature and focal length is positive i.e. reflecting surface is away from the centre of curvature. It always forms diminished (small) image which is VIRTUAL.
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संबंधित प्रश्न
We can obtain an enlarged and erect image by a convex mirror.
What is a virtual image?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
Which of the following has curved reflecting surface?
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:

