If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it? Draw a labelled ray diagram to support your answer.(All India - 2018)
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Explanation:
Convex mirror always forms a virtual, erect and diminished image of the object placed at any position in front of the mirror.
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If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, then the type of mirror is CONVEX mirror.
RAY DIAGRAM:
- Any incident ray parallel to principal axis, will appear to be passing through focus after reflection from convex mirror(ray 1 in figure).
- Any incident ray appear to be passing through center of curvature remains undeviated after reflection from convex mirror(ray 2 in figure).
- These two rays meet at a point where erect, diminished and virtual image of the object is formed.
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