CTET 2 Math and Science 3 Jan 2022 Paper
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Question : 80 of 150
Marks:
+1,
-0
A, B, C & D represent four media as follows
A = Air,
B = water,
C = Iron,
D = vacuum
In which of the above media, the spread sound is least and maximum respectively.
A = Air,
B = water,
C = Iron,
D = vacuum
In which of the above media, the spread sound is least and maximum respectively.
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