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Questions and Answers
What is the speed of light in a vacuum?
What is the speed of light in a vacuum?
- 300,000,000 meters per second
- 200,000,000 meters per second
- 299,792,458 meters per second (correct)
- 250,000,000 meters per second
What happens when light passes from air into glass?
What happens when light passes from air into glass?
- It disappears
- It slows down (correct)
- It remains at the same speed
- It speeds up
What is the primary color of light?
What is the primary color of light?
- Green
- Black
- Red
- White (correct)
Flashcards
Speed of light in a vacuum
Speed of light in a vacuum
299,792,458 meters per second
Light from air into glass
Light from air into glass
It slows down.
Primary Color of Light
Primary Color of Light
White
Study Notes
Light Fundamentals
- The speed of light in a vacuum is 299,792,458 meters per second (m/s).
- When light passes from air into glass, it slows down and bends due to the change in medium, a phenomenon known as refraction.
- The primary color of light is white, which is composed of all the colors of the visible spectrum.
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