Diffraction, Reflection, Refraction

Front

What is diffraction?

Back

Diffraction is the bending of waves around obstacles and openings, which causes the waves to spread out.

Front

What is reflection?

Back

Reflection is the bouncing back of light or sound waves when they hit a surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in speed.

Front

What causes refraction?

Back

Refraction is caused by a change in speed of light as it travels between different media.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What is the critical angle in refraction?

Back

The critical angle is the angle of incidence above which total internal reflection occurs.

Front

What is total internal reflection?

Back

Total internal reflection is the complete reflection of a light ray back into a medium when it hits the boundary at an angle greater than the critical angle.

Front

How does light behave when it passes through a prism?

Back

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

Front

What is the difference between reflection and refraction?

Back

Reflection involves bouncing back of waves, while refraction involves bending of waves as they pass into a different medium.

Front

What is an example of diffraction?

Back

An example of diffraction is the spreading of sound waves as they pass through a narrow opening.