Two vibrating strings of same material but lengths l and 2l have radii 
and r, respectively. They are stretched under the same tension. Both the strings vibrate in their fundamental modes, the one of the length l with frequency 
and the other with frequency 
. The ratio of 
is given by
Text Solution
Verified by ExpertsThe correct answer is:
D
, where 
mass per unit length 
or 
but 
or 
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