The Speed of Light in Glass

The video explains how light behaves when it passes through different materials, such as glass or water, and why it appears to slow down. It covers both wave and particle perspectives of light. As a wave, light's speed changes due to the medium, but its frequency remains constant. As a particle, light interacts with molecules, causing apparent slowing. The analogy of a president moving through a crowded room illustrates this concept.

What causes light to bend when it travels through materials like glass or water?

• Light speeds up in these materials.

• Light travels slower in these materials.

• Light changes color in these materials.

• Light stops in these materials.

According to the wave theory, what remains unchanged when light travels through glass?

• The path of light

• The frequency and color of light

• The energy of light

• The speed of light

How does the wave theory explain the slowing down of light in glass?

• Wave crests are closer together in glass.

• Light stops oscillating in glass.

• Light changes color in glass.

• Light loses energy in glass.

In the particle theory, what happens to light as it travels through glass?

• It stops due to interactions.

• It changes color due to interactions.

• It takes a longer path due to interactions.

• It speeds up due to interactions.

What analogy is used to describe the movement of light particles through glass?

• The President moving through a crowded room

• A bird flying in the sky

• A person walking through an empty room

• A car driving on a highway