Light Refraction Quiz

What is refraction?

• The reflection of light as it passes from one medium to another

• The absorption of light as it passes through a medium

• The scattering of light as it passes through a medium

• The bending of light as it passes from one medium to another due to a change in its speed.

When does refraction occur?

• When light passes from one medium to another and changes direction due to a change in its wavelength.

• When light passes from one medium to another and changes direction due to a change in its frequency.

• When light passes from one medium to another and changes direction due to a change in its amplitude.

• When light passes from one medium to another and changes direction due to a change in its speed.

What is the cause of refraction?

• Change in frequency of light

• Change in speed of light

• Change in wavelength of light

• Change in direction of light

What is the refractive index?

• The refractive index is the measure of how much light is absorbed by a medium.

• The refractive index is the angle at which light is bent when passing through a medium.

• The refractive index is the ratio of the speed of light in a vacuum to the speed of light in the medium.

• The refractive index is the measure of how fast light travels through a medium.

What is the law of refraction?

• The law of refraction is Hooke's law.

• The law of refraction is Newton's law of motion.

• The law of refraction is Ohm's law.

• The law of refraction is Snell's law.

What is the angle of incidence?

• The angle of incidence is the angle between the incident ray and the transmitted ray.

• The angle of incidence is the angle between the incident ray and the angle of reflection.

• The angle of incidence is the angle between the incident ray and the normal to a surface at the point of incidence.

• The angle of incidence is the angle between the incident ray and the reflected ray.

What is the angle of refraction?

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

• The angle of refraction depends on the angle of incidence and the refractive indices of the two media involved, and can be calculated using Snell's law.

• The angle of refraction is always 90 degrees.

• The angle of refraction is determined by the speed of light in the medium.

What is the critical angle?

• The critical angle is the angle of incidence that produces an angle of refraction of 90 degrees in a medium with a lower refractive index.

• The critical angle is the angle of incidence that produces an angle of refraction of 180 degrees in a medium with a lower refractive index.

• The critical angle is the angle of incidence that produces total internal reflection in a medium with a higher refractive index.

• The critical angle is the angle of incidence that produces an angle of refraction of 45 degrees in a medium with a higher refractive index.

What is total internal reflection?

• Total internal reflection is the refraction of a light ray into a medium when it encounters a boundary with a higher refractive index at an angle greater than the critical angle.

• Total internal reflection is the reflection of a light ray back into a medium when it encounters a boundary with a lower refractive index at an angle greater than the critical angle.

• Total internal reflection is the reflection of a light ray back into a medium when it encounters a boundary with a lower refractive index at an angle less than the critical angle.

• Total internal reflection is the reflection of a light ray back into a medium when it encounters a boundary with a higher refractive index at an angle greater than the critical angle.

Give an example of refraction in everyday life.

• Pencil in a glass of water

• Rainbow

• Mirror reflection

• Straw in a glass of water