String A has a length I, radius of cross – section r, density of material 
and is under tension t. string B has all these quantities double those of string A. if 
and 
are the corresponding fundamental frequencies of the vibrating string, then
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Fundamental frequency of a string is
Where the symbols have their usual meanings.
Substituting the given values, we get
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