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Subject :NSO    Class : Class 8
Where does sound travel fastest?

Ans 1:

Class : Class 9
Through solids since the atoms are closely packed in them.

Ans 2:

Class : Class 8
Vacuum

Ans 3:

Class : Class 8
VACCUM BUT LIGHT CAN

Ans 4:

Class : Class 8
vaccum

Ans 5:

Class : Class 8
First of all , many have answered it vaccum but it is absolutely wrong because sound can not travel in vaccum and most probably the correct answer will be solid.

Ans 6:

Class : Class 8
vacuum

Ans 7:

Class : Class 9
Vaccum

Ans 8:

Class : Class 8
Air

Ans 9:

Class : Class 2
Vacuum

Ans 10:

Class : Class 2
Water

Ans 11:

Class : Class 8
In solids, especially when atoms are closely packed, metals.. Sound does travel in water and air with slow speed 1000, 300 m/s respectively whereas in metals with 3000 m/s.. And sound doesn't travel in vaccum at all..

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