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Cutting of Thin Lenses

Suppose that ...

Question

Suppose that the lower half of the concave mirror's reflecting in figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?

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Solution

If a part of mirror is covered with an opaque object then intensity of the image formed will decrease as the image will be formed by less no. of light rays.

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