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A man of height 1.4 m wishes to see his full image in a plane mirror placed at distance of 2 m. The minimum height of the mirror should be

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Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres, corresponding to frequencies of 750–420 terahertz, between the infrared and the ultraviolet.


A man of height 1.4 m wishes to see his full image in a plane mirror placed at distance of 2 m. The minimum height of the mirror should be






 
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