Physics · Ray Optics
The incident ray, reflected ray, and outward-drawn normal to a reflecting surface are denoted by the unit vectors â, b̂, and ĉ respectively. Choose the correct vector relation representing the law of reflection.
- 1b̂ = â - ĉ
- 2b̂ = â - 2(â · ĉ)ĉ✓
- 3b̂ = 2â + ĉ
- 4b̂ = â + 2ĉ
Correct answer
b̂ = â - 2(â · ĉ)ĉ
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