Reflection and Light Concepts

The video tutorial explains the concept of light reflection, including its definition and the laws that govern it. It covers the types of reflection, such as regular and irregular reflection, and provides definitions for key terms like incident ray, reflected ray, and normal. The tutorial emphasizes the importance of understanding the angles of incidence and reflection and how they relate to the plane of incidence and reflection.

What happens to light when it strikes a highly polished surface?

• It is absorbed completely.

• It is scattered in all directions.

• It is turned back into the same medium.

• It passes through the surface.

Which of the following is true according to the laws of reflection?

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

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

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

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

What type of surface causes regular reflection?

• A rough surface like a wall

• A translucent surface like frosted glass

• A transparent surface like glass

• A smooth and polished surface like a plane mirror

Which type of reflection occurs on a rough surface?

• Total internal reflection

• Regular reflection

• Specular reflection

• Irregular reflection

What is the term for the light ray that strikes a reflecting surface?

• Refracted ray

• Incident ray

• Normal

• Reflected ray

What is the point called where the incident ray strikes the reflecting surface?

• Point of reflection

• Point of convergence

• Point of refraction

• Point of incidence

What is the angle between the incident ray and the normal called?

• Angle of deviation

• Angle of incidence

• Angle of refraction

• Angle of reflection

What is the angle between the reflected ray and the normal called?

• Angle of incidence

• Angle of deviation

• Angle of refraction

• Angle of reflection

Which plane contains the incident ray and the normal?

• Plane of deviation

• Plane of incidence

• Plane of reflection

• Plane of refraction

Which plane contains the reflected ray and the normal?

• Plane of incidence

• Plane of reflection

• Plane of deviation

• Plane of refraction