Light Refraction

What is the law of refraction?

• The law of refraction states that light travels faster in denser mediums.

• The law of refraction is based on the angle of reflection.

• The law of refraction is only applicable to transparent materials.

• The law of refraction is the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant when light passes from one medium to another.

Explain the basic concept of light refraction.

• Light refraction is the bending of light as it passes from one medium to another due to a change in speed.

• Light refraction is the absorption of light by a medium

• Light refraction is the reflection of light off a surface

• Light refraction is the splitting of light into different colors

How does optical density affect the refraction of light?

• Optical density affects the refraction of light by changing the speed of light as it passes through different mediums.

• Optical density has no effect on the refraction of light

• Optical density causes light to reflect instead of refract

• Optical density increases the speed of light in a medium

Give an example of a practical application of light refraction.

• Sound wave propagation

• Light absorption in plants

• Optical lenses, eyeglasses, and cameras

• Heat conduction in metals

How does the speed of light change when it enters a medium of higher optical density?

• The speed of light becomes zero

• The speed of light remains constant

• The speed of light increases

• The speed of light decreases

Explain how light bends when it travels from air to water.

• Light bends away from the normal line

• Light bends towards the normal line when it travels from air to water.

• Light bends in a zigzag pattern

• Light bends in a straight line

What is the role of refraction in the formation of rainbows?

• Refraction speeds up the process of rain evaporation, eliminating rainbows.

• Refraction separates sunlight into its different colors, forming a rainbow.

• Refraction absorbs sunlight, preventing the formation of rainbows.

• Refraction causes sunlight to disappear, leading to the absence of rainbows.