Everyday Science
NULL
Medium
Question
According to this MCQ, which waves have the smallest velocity in vacuum?
A
Ultraviolet
B
Sound
✓ Official correct answer
C
Infra-Red
D
Micro
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
Ultraviolet
No member explanations yet for this option.
B
Sound
No member explanations yet for this option.
C
Infra-Red
No member explanations yet for this option.
D
Micro
No member explanations yet for this option.
Explanation
According to the keyed answer, sound is slowest in vacuum.
Editor note: sound needs a medium; options left unchanged.
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