a
sound waves
b
light waves
c
infra-red waves
d
x-radiation
e
radio waves
Explanation
Correct Option
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Discussions (9)

Pohji
6 years ago
sound waves cannot be propagated through a vacuum. it was confirmed by the experiment of a bell in a vacuum jar

Abdullahi113
1 year ago
Sound wave cannot travel to vacuum it's a mechanical wave and it's require material medium for propagation

