The table displays the velocity of light in three different states of matter. When would the speed of light decrease?(1 point)
1. When light moves from glass to water.
2. When light moves from air into water.
3. When light transitions from glass to air.
4. When light transitions from water to air.
THE TABLE:
Material.........................Speed m/s
Air..................................300,000,000
Water.............................220,000,000
Glass.............................200,000,000