Light and Color Assessment

What is the law of reflection?

• The angle of incidence is equal to the angle of refraction

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

• The angle of reflection is twice the angle of incidence

• The angle of reflection is half the angle of incidence

Which of the following best describes a plane mirror?

• A curved reflective surface

• A flat reflective surface

• A transparent surface

• A rough surface

When light travels from air into glass, what happens to its speed?

• It increases

• It stays the same

• It decreases

• It becomes zero

What is the term for the bending of light as it passes from one medium to another?

• Reflection

• Dispersion

• Diffraction

• Refraction

In the law of reflection, what does the normal line represent?

• The path of the reflected light

• The path of the incident light

• A line perpendicular to the reflecting surface

• The boundary between two mediums

Which color of light bends the most when passing through a prism?

• Red

• Green

• Blue

• Yellow

What happens to light rays when they hit a rough surface?

• They are absorbed completely

• They are reflected in a single direction

• They are scattered in many directions

• They pass through without any change

When light passes from water into air, what happens to its speed?

• It decreases

• It stays the same

• It increases

• It becomes infinite

What is the angle of incidence?

• The angle between the reflected ray and the normal

• The angle between the incident ray and the reflected ray

• The angle between the incident ray and the normal

• The angle between the normal and the surface

Which of these is NOT a property of light?

• It can be reflected

• It can be refracted

• It can travel through a vacuum

• It can travel faster than the speed of sound