Questions and Answers
What is the speed of light in a vacuum?
$3.00 \times 10^8$ m/s
Which color of light has the shortest wavelength in the visible spectrum?
Violet
What happens to the speed of light when it passes from air into glass?
It decreases
Which scientist is credited for the first successful measurement of the speed of light?
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Study Notes
Light Properties
- The speed of light in a vacuum is a constant, approximately 299,792,458 meters per second (m/s).
Visible Spectrum
- Violet light has the shortest wavelength in the visible spectrum.
Refraction
- When light passes from air into glass, its speed decreases due to the change in medium.
History of Light Measurement
- Ole Rømer, a Danish astronomer, is credited with the first successful measurement of the speed of light in 1676.
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Description
Test your knowledge about the speed of light in a vacuum, the visible spectrum, and the behavior of light when passing through different mediums. Explore questions about the scientists who made significant contributions to the study of light.
