Refraction of Light and Total Internal Reflection Quiz

What happens to the speed of light when it passes from a rare medium to a denser medium?

• It increases
• It decreases
• It remains the same
• It becomes zero

In the context of refraction, what does the term 'normal' refer to?

• The angle of incidence
• The line perpendicular to the surface
• The path of the light ray
• The refracted ray

When light travels from a denser medium to a rarer medium, what happens to the angle of refraction compared to the angle of incidence?

• It is equal
• It is smaller
• It is larger
• It becomes zero

What is the critical angle?

• The angle of incidence for which light is totally reflected
• The angle of refraction at 90 degrees
• The angle of incidence for which light is refracted at 45 degrees
• The angle at which light travels in a straight line

If the angle of incidence is greater than the critical angle, what occurs?

• Light is refracted
• Light is absorbed
• Light is totally internally reflected
• Light travels straight

How is the refractive index of a medium calculated?

• Speed of light in medium / Speed of light in air
• Speed of light in air / Speed of light in medium
• Angle of incidence / Angle of refraction
• Angle of refraction / Angle of incidence

What effect does increasing the width of a glass block have on the displacement of a light ray due to refraction?

• Increases displacement
• Decreases displacement
• No effect on displacement
• Displacement becomes zero

When light passes through a prism, what happens to the image of an object?

• It appears farther from the prism
• It appears closer to the apex of the prism
• It remains unchanged
• It disappears

What is the relationship between the angle of incidence and the angle of refraction in a denser medium?

• They are always equal
• Angle of incidence is greater
• Angle of refraction is greater
• They are inversely proportional

What happens to the frequency of light as it passes from one medium to another?

• It increases
• It decreases
• It remains the same
• It becomes zero