Refraction

The video explains how waves change velocity when moving from one medium to another. It describes how waves bend when entering a slower medium at an angle, with one end of the wavefront slowing down first. This bending effect is most noticeable with light but occurs with all types of waves.

What happens to a wave's velocity when it transitions from one medium to another?

• It decreases.

• It becomes zero.

• It remains constant.

• It increases.

When a wave enters a slower medium at an angle, what occurs to the wavefront?

• It disappears.

• It speeds up.

• It bends.

• It splits into two.

Which part of the wavefront is affected first when entering a slower medium?

• The middle part.

• The back end of the wavefront.

• One end of the wavefront.

• The entire wavefront simultaneously.

Which type of wave is the bending effect most noticeable with?

• Water waves.

• Sound waves.

• Radio waves.

• Light waves.

Does the bending effect occur with all types of waves?

• No, it only occurs with sound waves.

• No, it only occurs with light waves.

• Yes, it occurs with all waves.

• No, it only occurs with water waves.