Question

When the wheel of a cart rolls from a smooth sidewalk onto a plot of grass, the interaction of the wheel with the blades of grass slows the wheel. What slows light when it passes from air into glass or water

Answer 1

The light oscillates electrons which then absorbs some of the energy and reemit it thereby causing a delay.

What are Electrons?

This is defined as a subatomic particle which has a negative charge. In the glass of water the light oscillates the electrons which absorbs some energy.

The re-emission is what slows light when it passes from air into glass or water.

Read more about Electrons here https://brainly.com/question/13998346