How will you distinguish between a plane mirror, a concave mirror and a convex mirror without touching them?

To distinguish between a plane mirror, a concave mirror, and a convex mirror without touching them, we place an object extremely close to all these three mirrors:-

1. If the image formed is virtual, erect, and of the same size as the object, then it will be a plane mirror.

2. If the image formed is virtual, erect, and large-sized, then it will be a concave mirror.

3. If the image formed is virtual, erect, and small-sized, then it will be a convex mirror.

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Updated on: 10-Oct-2022

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