Understanding Refraction

What happens to light when it passes from air into water?

• Light bends and slows down when it passes from air into water.

• Light disappears completely when it hits the water.

• Light passes straight through without any change.

• Light speeds up and changes color when entering water.

How does the angle of incidence affect the angle of refraction when light enters water from air?

• The angle of incidence affects the angle of refraction by causing it to increase at a slower rate when light enters water from air.

• The angle of incidence causes the angle of refraction to decrease rapidly when entering water.

• The angle of refraction is always equal to the angle of incidence.

• The angle of incidence has no effect on the angle of refraction.

What is the term used to describe the bending of light as it passes from one medium to another?

• Refraction

• Absorption

• Diffraction

• Reflection

When light travels from water to air, what happens to its speed?

• The speed of light increases.

• The speed of light remains the same.

• The speed of light decreases.

• The speed of light becomes zero.

What is Snell's Law and how does it relate to refraction?

• Refraction occurs only when light travels from air to water.

• Snell's Law is only applicable to sound waves, not light.

• Snell's Law states that light travels in a straight line in all mediums.

• Snell's Law relates to refraction by providing the mathematical relationship that describes how light changes direction when entering a different medium.

Can you give an example of refraction that occurs in everyday life?

• A mirror reflecting an image clearly.

• A common example of refraction is a straw appearing bent when placed in a glass of water.

• A rainbow appearing in the sky after rain.

• A shadow cast by an object in sunlight.

How does a straw appear bent when placed in a glass of water?

• The straw appears bent due to the refraction of light at the water's surface.

• The straw appears bent because it is made of flexible material.

• The straw looks bent due to the glass being curved.

• The straw is bent because of the temperature of the water.

What role does the refractive index play in the bending of light?

• The refractive index determines the degree to which light bends when entering a new medium.

• The refractive index has no effect on light bending.

• Light always bends at a constant angle regardless of the medium.

• The refractive index only affects the speed of sound in a medium.

What is total internal reflection and how is it related to refraction?

• Total internal reflection is the complete reflection of light within a medium when it hits a boundary at an angle greater than the critical angle, related to refraction as it occurs when the conditions of refraction are not met.

• Total internal reflection can happen at any angle of incidence.

• Refraction is the same as total internal reflection.

• Total internal reflection occurs only in air.

How does the color of light affect its refraction when passing through different mediums?

• All colors of light refract at the same angle regardless of the medium.

• The color of light affects its refraction because different colors (wavelengths) bend at different angles when passing through various mediums.

• The intensity of light affects refraction more than its color.

• Only red light experiences refraction differently than other colors.