Reflect, refract, and absorb

What is dispersion in the context of light?

• The bending of light as it passes through different mediums.

• The separation of light into its component colors due to different degrees of refraction.

• The reflection of light off a surface.

• The absorption of light by a material.

What is the process called when a microscope lens bends light?

• Reflection

• Refraction

• Diffraction

• Absorption

What is an example of reflection?

• A picture showing light bouncing off a surface, like a mirror.

• A photo of a sunset over the ocean.

• A diagram illustrating sound waves.

• A video of a moving car on a road.

What is the refractive index?

• A measure of how much light bends when it enters a material.

• The speed of light in a vacuum divided by the speed of light in a medium.

• The angle at which light hits a surface.

• The color of light as it passes through different materials.

What is the critical angle in optics?

• The angle at which light is completely absorbed by a medium.

• The minimum angle of incidence at which total internal reflection occurs.

• The angle at which light bends the most in a prism.

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

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

• The light energy is converted into other forms of energy, such as heat.

• The light is reflected back into the environment.

• The light energy increases the material's mass.

• The light energy is stored indefinitely in the material.

What is a concave lens?

• A lens that converges light rays to a focal point.

• A lens that diverges light rays away from a focal point.

• A lens that reflects light rays back to the source.

• A lens that absorbs light rays completely.

How does light behave when it hits a mirror?

• It reflects off the surface.

• It absorbs into the mirror.

• It passes through the mirror.

• It scatters in all directions.

What is total internal reflection?

• A phenomenon that occurs when light travels from a denser medium to a less dense medium and is completely reflected back into the denser medium.

• A process where light is absorbed by a medium and does not pass through.

• A situation where light bends as it passes from one medium to another.

• A type of reflection that only occurs in mirrors.

What does 'absorb' mean in the context of light?

• Soaking up light.

• Reflecting light away.

• Scattering light in different directions.

• Allowing light to pass through.