Light Quiz

How does light primarily travel?

• As particles
• As waves
• As rays
• As vibrations

What is the speed of light in a vacuum?

• 300,000 m/s
• 300,000,000 m/s
• 3,000,000 m/s
• 3,000,000,000 m/s

What happens to light when it passes through a prism?

• It disappears
• It bends
• It splits into colors
• It speeds up

Which of the following is NOT a primary color of light?

• Red
• Green
• Blue
• Yellow

What is the law of reflection?

• Angle of incidence equals angle of refraction
• Angle of incidence equals angle of reflection
• Angle of reflection equals angle of absorption
• Angle of incidence is always 90 degrees

What type of reflection occurs on a smooth surface?

• Diffuse reflection
• Specular reflection
• Scattered reflection
• Absorbed reflection

What occurs when light passes from air into glass?

• It speeds up
• It bends away from the normal
• It bends towards the normal
• It reflects

What is the function of the retina in the eye?

• To focus light
• To detect light
• To control pupil size
• To carry signals to the brain

What color do you see when an object reflects only blue light?

• Red
• Green
• Blue
• Yellow

What is the role of photoreceptors in the eye?

• To focus light
• To detect light and send signals to the brain
• To control the iris
• To reflect light