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Speed of Light and Optics Quiz

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Questions and Answers

What is the speed of light in a vacuum?

$4.00 \times 10^8$ m/s

$2.00 \times 10^8$ m/s

$1.00 \times 10^8$ m/s

$3.00 \times 10^8$ m/s (correct)

Which color of light has the shortest wavelength in the visible spectrum?

Red

Violet (correct)

Blue

Green

What happens to the speed of light when it passes from air into glass?

It decreases (correct)

It remains the same

It increases

It depends on the color of light

Which scientist is credited for the first successful measurement of the speed of light?

<p>Ole Rømer</p> Signup and view all the answers

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.