Reflection, refraction, diffraction

Front

What is reflection in terms of light?

Back

Reflection is the bouncing back of light rays when they hit a surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is diffraction?

Back

Diffraction is the spreading out of waves when they pass through a narrow opening or around obstacles.

Front

What is a medium in the context of waves?

Back

A medium is the substance through which a wave travels, such as air, water, or solid materials.

Front

What happens to light when it strikes a mirror?

Back

The light is reflected back, allowing us to see our image.

Front

What is the angle of incidence?

Back

The angle of incidence is the angle between the incoming light ray and the normal (a line perpendicular to the surface).

Front

What is the angle of reflection?

Back

The angle of reflection is the angle between the reflected light ray and the normal.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at an angle greater than the critical angle, causing it to be completely reflected back into the medium.

Front

How does light behave when it passes through a prism?

Back

Light refracts and disperses into its component colors when passing through a prism.

Front

What is sonar?

Back

Sonar is a technique that uses sound waves to detect objects underwater, relying on the principle of reflection.