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Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle q. After reflection, falls on the second mirror and is reflected from there parallel to the first mirror q is

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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.


Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle q. After reflection, falls on the second mirror and is reflected from there parallel to the first mirror q is






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