Light Quiz

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 incidence is equal to the angle of dispersion.

What happens to light when it passes from air into water?

• It speeds up and bends away from the normal.

• It slows down and bends towards the normal.

• It speeds up and bends towards the normal.

• It slows down and bends away from the normal.

Which phenomenon causes a rainbow to form?

• Reflection

• Refraction

• Dispersion

• Absorption

What is the primary cause of shadows?

• Reflection of light

• Refraction of light

• Absorption of light

• Blocking of light

Which colour of light has the shortest wavelength?

• Red

• Green

• Blue

• Violet

What happens to light when it is absorbed by a material?

• It is reflected.

• It is transmitted.

• It is converted into heat.

• It is dispersed.

Which of the following is an example of a transparent material?

• Wood

• Glass

• Metal

• Brick

What is the term for the bending of light as it passes through different mediums?

• Reflection

• Refraction

• Dispersion

• Absorption

Which colour of light is least absorbed by a green leaf?

• Red

• Blue

• Green

• Yellow

What is the angle between the incident ray and the reflected ray if the angle of incidence is 30 degrees?

• 30 degrees

• 60 degrees

• 90 degrees

• 120 degrees