Refraction video

What is the phenomenon of refraction of light waves?

• The bouncing back of light when it strikes a surface.

• The change in direction of light as it passes from one medium to another.

• The splitting of light into its constituent colors.

• The absorption of light by a material.

How does the density of a material affect the speed of light waves traveling through it?

• Higher density leads to faster wave speed.

• Higher density leads to slower wave speed.

• Density has no effect on wave speed.

• Density only affects the wavelength, not the speed.

When a light wave passes from a less dense medium into a more dense medium at an angle, how does its direction change relative to the normal?

• It bends away from the normal.

• It bends towards the normal.

• It continues in a straight line.

• It reflects back into the less dense medium.

When a light wave passes from a more dense medium into a less dense medium at an angle, how does its direction change relative to the normal?

• Curves away from the normal

• Direction does not change

• Curves towards the normal

• Direction reverses

When a light wave passes from one medium to another, which of the following properties remains constant?

• Wave speed

• Wavelength

• Frequency

• Direction