Introduction of light 1

What is reflection of light?

• Reflection of light is the process by which light bounces off a surface and changes direction.

• Reflection of light is the process by which light passes through a surface and continues in the same direction.

• Reflection of light is the process by which light is absorbed by a surface and disappears.

• Reflection of light is the process by which light changes color when it hits a surface.

Explain the term 'normal' in the context of reflection of light.

• The term 'normal' refers to the angle at which light is reflected from a surface

• Normal is the term used to describe light that is reflected at an abnormal angle

• Normal is the term used to describe light that is refracted instead of reflected

• The term 'normal' in the context of reflection of light refers to the line that is perpendicular to the surface at the point where the light ray strikes the surface.

What is the angle of incidence?

• The angle of incidence is the angle between the reflected ray and the normal to the surface at the point of incidence.

• The angle of incidence is the angle between the incident ray and the tangent to the surface at the point of incidence.

• The angle of incidence is the angle between the incident ray and the normal to the surface at the point of incidence.

• The angle of incidence is the angle between the refracted ray and the normal to the surface at the point of incidence.

What is the angle of reflection?

• The angle of reflection is always 90 degrees.

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

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

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

State the first law of reflection.

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

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

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

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

State the second law of reflection.

• The speed of light changes when it enters a new medium

• Angle of reflection = Angle of refraction

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

• Normal is always perpendicular to mirror.

Provide an example of reflection of light in everyday life.

• Seeing your reflection in a puddle of water

• Looking at oneself in the mirror

• Reflection of light in a vacuum

• Light reflecting off a car windshield

Explain the term 'medium' in the context of reflection of light.

• The term 'medium' refers to the angle at which light is reflected from a surface

• Medium is the term used to describe light that is reflected at an abnormal angle

• Medium is the term used to describe light that is refracted instead of reflected

• The term 'medium' in the context of reflection of light refers to the material through which light travels.

Reflection of light waves from a smooth surface is ____.

• diffuse reflection

• irregular reflection

• regular/mirror reflection

Which of the following is not a source of light? 

• A. candle
• B. caver’s lamp
• C. mirror
• D. sun