Multiple Choice
How does the speed of light in a substance such as glass compare to the speed of light in a vacuum?
A) The speed of light in glass is faster than the speed of light in a vacuum.
B) The speed of light is the same in both, equal to 299,792.458 km/s.
C) The speed of light in glass is slower than the speed of light in a vacuum.
D) The speed of light in glass can be faster or slower than the speed of light in a vacuum, depending on the type of glass.
Correct Answer:
Verified
Correct Answer:
Verified
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