Light Refraction Quiz

What is refraction of light waves?

• When waves change direction as they pass through air

• When waves change direction as they pass from one medium to another

• When waves change speed as they pass through air

• When waves change color as they pass through a prism

What happens to the speed of light waves in different materials?

• It decreases in less dense materials

• It decreases in denser materials

• It increases in denser materials

• It remains the same in all materials

What is the normal in the context of light refraction?

• A line at a 90-degree angle to the surface of the material

• A line at a 45-degree angle to the surface of the material

• A line parallel to the surface of the material

• A line perpendicular to the surface of the material

What happens to the direction of a light wave when it passes from air into glass?

• It stops completely

• It slows down and bends towards the normal

• It speeds up and bends away from the normal

• It remains the same

What is the refracted ray in the context of light refraction?

• The ray that slows down and bends towards the normal

• The ray that remains the same

• The incoming light ray

• The ray that speeds up and bends away from the normal

What is the emergent ray in the context of light refraction?

• The ray that remains the same

• The ray that speeds up and bends away from the normal

• The ray that slows down and bends towards the normal

• The incoming light ray

What happens to the wavelength of a wave when its speed increases?

• It decreases

• It remains the same

• It increases

• It stops completely

What happens when white light is passed through a triangular prism?

• It turns black

• It disappears

• It remains white

• It spreads out into different colors

What causes the different colors of white light to spread out when passed through a triangular prism?

• Different densities of the prism

• Different speeds of the light waves

• Different wavelengths of the light waves

• Different angles of the prism

What is the frequency of a wave?

• The height of a wave

• The number of waves passing through a point in a certain amount of time

• The distance between two wave crests

• The speed of the wave