A) Diamond
B) Water
C) Vacuum
D) Hydrogen
Correct Answer: C
Solution :
The velocity of light is maximum in vacuum. It is close to 2.99792458 x 108 m/s. A vacuum is a region with no matter in it; there are no particles, no material medium, nothing. So, there is no reflection, refraction, diffraction, etc. That is why it travels the fastest in vacuum.You need to login to perform this action.
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