Light Reflection and Refraction

What is the law of reflection?

• The angle of incidence is equal to the angle of reflection.

• The angle of incidence is greater than the angle of reflection.

• The angle of reflection is perpendicular to the angle of incidence.

• The angle of reflection is less than the angle of incidence.

Explain the concept of refraction of light.

• The absorption of light by a medium

• The scattering of light as it passes through a medium

• The bending of light as it passes from one medium to another.

• The reflection of light off a surface

Name the different types of mirrors and explain how they reflect light.

• Round mirrors, square mirrors, and oval mirrors

• Red mirrors, blue mirrors, and green mirrors

• Transparent mirrors, translucent mirrors, and opaque mirrors

• Plane mirrors, concave mirrors, and convex mirrors

Define incident ray and provide an example.

• An incident ray is a ray of light that comes from the moon.

• An incident ray is a ray of light that reflects off a surface.

• An incident ray is a ray of light that strikes a surface. For example, when light from the sun strikes a mirror, the incoming ray of light is the incident ray.

• An incident ray is a ray of light that travels through a transparent object.

What is a reflected ray and how does it relate to the incident ray?

• A reflected ray is a ray of sound that bounces off a surface, and it relates to the incident ray by creating an echo.

• A reflected ray is the ray of light that bounces off a surface, and it relates to the incident ray by following the law of reflection.

• A reflected ray is a ray of heat that bounces off a surface, and it relates to the incident ray by causing a temperature increase.

• A reflected ray is a ray of water that bounces off a surface, and it relates to the incident ray by causing a splash.

Explain the concept of normal in the context of light reflection and refraction.

• An imaginary line perpendicular to the surface at the point of incidence.

• A line parallel to the surface at the point of incidence.

• A line at a 45-degree angle to the surface at the point of incidence.

• An imaginary line that extends infinitely in all directions.

What are the types of reflection and how do they differ?

• Clear reflection and blurry reflection

• Direct reflection and indirect reflection

• Regular reflection and diffuse reflection

• Smooth reflection and bumpy reflection

Describe the process of light reflection when it occurs on a smooth surface.

• The light scatters in all directions on the smooth surface

• The light reflects off a smooth surface following the law of reflection.

• The light gets absorbed by the smooth surface

• The light passes through the smooth surface

How does light reflection differ when it occurs on a rough surface?

• The reflected rays travel in a straight line

• The reflected rays scatter in different directions.

• The reflected rays change color

• The reflected rays move at a slower speed

Explain the phenomenon of total internal reflection.

• Total internal reflection

• Internal refraction

• Complete external reflection

• Partial internal reflection