Light Travels Quiz

What is the reflection of light?

• Reflection

• Refraction

• Absorption

• Diffraction

Which type of surface reflects light in a regular manner?

• Transparent and translucent surface

• Dull and dirty surface

• Smooth and polished surface

• Rough and uneven surface

What is the refraction of light?

• The absorption of light by a medium

• The emission of light from a source

• The reflection of light off a surface

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

What happens to the speed of light when it enters a denser medium?

• its speed remains the same

• its speed becomes zero

• its speed increases

• its speed decreases

What is the absorption of light?

• Emission of heat

• Refraction of light

• Absorption of light

• Reflection of sound

Which type of material absorbs most of the light that falls on it?

• Reflective body

• Black body

• White body

• Transparent body

What are transparent materials?

• Substances that reflect light in all directions

• Objects that block all light from passing through

• Substances that allow light to pass through them without scattering

• Materials that absorb all light

Give an example of a transparent material.

• Brick

• Glass

• Concrete

• Wood

What are opaque materials?

• Materials that do not allow light to pass through them.

• Materials that are transparent

• Materials that allow light to pass through them

• Materials that are see-through

Give an example of an opaque material.

• Glass

• Plastic

• Wood

• Air