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Laws of Reflection Class 12th

The incident ray, reflected ray and the outward drawn normal are denoted by the unit vectors a → , b →     a n d     c →  respectively. Then choose the correct relation for these vectors.
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alok kumar singh

Contributor-Level 10

r ^ − i ^ = 2 c o s θ n ^ . . . . . . ( 1 )

⇒ r ^ = i ^ − 2 ( i ^ . n ^ ) n ^

⇒ b → = a → − 2 ( a → . c → ) c →

 

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