Physics
NULL
Medium
Question
The velocity of laser light is___________________?
A
Less than ordinary light
B
More than ordinary light
C
Equal to ordinary light
✓ Official correct answer
D
Different for different colours or frequency
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Less than ordinary light
No member explanations yet for this option.
B
More than ordinary light
No member explanations yet for this option.
C
Equal to ordinary light
No member explanations yet for this option.
D
Different for different colours or frequency
No member explanations yet for this option.
Explanation
Laser light is still electromagnetic radiation and travels at the same speed as ordinary light in vacuum; its distinguishing features are coherence and monochromaticity, not speed.
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