Question

The laws of reflection and refraction are true for all surfaces and pairs of media at the

• A. point of incidence
• B. point of refraction
• C. angle of incidence
• D. angle of reflection

Hint:

Reflection and refraction laws apply at the point of incidence, independent of surface curvature or media.

Answer 1

The Correct Option is A

Step 1: Recall the laws of reflection and refraction.
- Reflection: angle of incidence = angle of reflection.
- Refraction: Snell’s law, \(n_1 \sin i = n_2 \sin r\).
Step 2: Universality.
Both laws hold true regardless of surface shape or media, but they are defined precisely at the point of incidence, where the light ray meets the boundary.
Final Answer: \[ \boxed{\text{point of incidence}} \]