Q .     Two uniform stretched strings `A` and `B`, made of steel are vibrating under the same tension. If the first overtone of `A` is equal to the second overtone of `B` and if the radius of `A` is twice that of `B`, the ratio of the lengths of the strings is :

EAMCET
A

`2:3`

B

`1:2`

C

`1:3`

D

`1:4`

HINT

Use `n=1/(2l)sqrt(T/m)`

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