Question

lasers are pointed at different containers filled with water, oil, and air. the speed of the laser changes based on the container. what explanation best accounts for this observation? light waves move at the same speed in all materials light waves move at different speeds through different materials the color of the containers alters the speed of light the temperature of the materials solely affects the speed of light

Explanation:

Light waves have different speeds in different materials. For example, light travels fastest in a vacuum, slower in air, and even slower in water and oil. The color of the container does not affect the speed of light. Also, the temperature is not the sole factor affecting the speed of light in these materials. The main factor is the nature of the medium (material) through which the light is passing.

Answer:

Light waves move at different speeds through different materials