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Question
If the image formed by a mirror for all positions of the object placed in front of it is always diminished, erect and virtual, state the type of the mirror and also draw a ray diagram to justify your answer. Write one use such mirrors are put to and why.
Solution
The type of the mirror is convex mirror.
Ray diagram is shown below:
Use of convex mirror
A convex mirror always produces a smaller, virtual, and erect image of an object.
In convex mirror, the length of the image is shorter than that of the object. Hence, it is used as a side view mirror in vehicles because the viewed area must be larger than the surface area of the mirror. The convex mirror forms images of vehicles that are spread over a relatively larger area.
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