APFIVE Photon Speed in a Vacuum
What is the speed of a photon in a vacuum?
A
3.00 × 10^8 m/s
B
2.99 × 10^8 m/s
C
3.01 × 10^8 m/s
D
2.98 × 10^8 m/s
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What is the speed of a photon in a vacuum?
3.00 × 10^8 m/s
2.99 × 10^8 m/s
3.01 × 10^8 m/s
2.98 × 10^8 m/s
Not enough data yet to show leaderboard.