Question

which of these is not a medium for propagation of sound
1)vaccum
2)steel
3)water
4)air​

Answer 1

Answer:

sound can not travel in vaccum so a is correct

Answer 2

Answer:

$\huge{ \underline{ \mathtt{ \red{❤A} \pink{N} \green{S} \blue{W} \purple{E} \orange{R}}}}$

Explanation:

which of these is not a medium for propagation of sound.

answer is Vaccum

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thanks for asking;)