Multiple Choice
The speed of light always has the same value in a vacuum
A) but its speed inside a transparent material depends on the temperature of the material and can be faster or slower than its speed in a vacuum.
B) as well as in transparent materials.
C) but is slower in transparent materials such as water and glass.
D) but is faster in transparent materials such as water and glass.
Correct Answer:

Verified
Correct Answer:
Verified
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