4.Which law describes the behavior of light at the boundary between two media?Coulomb's LawOhm's LawSnell's LawLaw of Reflection

Breakdown of the Problem

We need to identify which law describes how light behaves when it passes from one medium to another, specifically at the boundary of those two media.

Relevant Concepts

1. Coulomb's Law: Relates to electrostatic forces between charged objects.
2. Ohm's Law: Pertains to the relationship between voltage, current, and resistance in electrical circuits.
3. Snell's Law: Describes the relationship between the angles of incidence and refraction when light travels between two different media.
4. Law of Reflection: States that the angle of incidence is equal to the angle of reflection when light bounces off a surface.

Analysis and Detail

• Coulomb's Law is not applicable to light as it concerns electrostatic forces.
• Ohm's Law does not pertain to optics; it is related to electrical circuits.
• Snell's Law is specifically focused on light refraction and is given by the formula $n_1 \sin(\theta_1) = n_2 \sin(\theta_2)$, where $n$ represents the refractive indices of the two media, and $\theta$ are the angles with respect to the normal.
• Law of Reflection applies to light reflecting off surfaces rather than refraction at boundaries.

Verify and Summarize

Given the definitions and applications of each law, Snell's Law directly addresses the behavior of light at the interface between two media.

Final Answer

The correct answer is Snell's Law.