Q. Sound waves can not travel through a
A) silver slab placed in air
B) copper wire placed in air
C) wooden hollow pipe placed in vacuum
D) glass prism placed in water
โ Correct Answer: wooden hollow pipe placed in vacuum
Exam Insight
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A) silver slab placed in air
B) copper wire placed in air
C) wooden hollow pipe placed in vacuum
D) glass prism placed in water
โ Correct Answer: wooden hollow pipe placed in vacuum
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