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Mirror |
Lens |
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It has only one surface which reflects light. |
It has two surfaces, out of which one or both can refract light. |
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It follows the laws of reflection. |
It follows the law of refraction. |
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A mirror can be plane or spherical (concave or convex) |
A lens is usually curved from either one or both surfaces. |
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Mirror formula is 1/f = 1/v + 1/u |
Lena formula is 1/f = 1/v - 1/u |
