Define Law of refraction and law of reflection
Answers
Laws of reflection
1. The incident ray ,the normal and the reflected ray all lie in the same plane
2. The angle of incidence is equal angle of reflection
Absolute refractive index
The ratio of velocity of light in vacuum compared to velocity of light in the medium
It can be expressed in mathematically
n = c/v
The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle of reflection is equal to the angle of incidence .This type of reflection is called diffuse reflection, and is what enables us to see non-shiny objects.
The law of refraction, which is generally known as Snell's law governs the behave of light rays as they propagate across a sharp interface between two transparent dielectric media. ... the incident ray, the refracted ray and the normal to the interface of two media at the point of incidence all lie in the same plane.
Snell's law is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air
n = c/v