1.

If the tension and diameter of a sonometer wire of fundamental frequencyvare doubled and density is halved, then its fundamental frequency will become

Answer»

v/4
v
`sqrt(2)` v
v/`sqrt(2)`

Solution :n= `(1)/(2l ) sqrt((T)/(m)) = (1)/(2l ) sqrt((T)/(pi R^(2).RHO)) `
Since TENSION and DIAMETER both are doubled, so frequency remains the same.
Correct chocie is b.


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