Problem

\lambda_1, \lambda_2

and

\lambda_3

are the wavelength of the waves giving resonance to the fundamental, first and second overtone modes respectively in a string fixed at both ends. The ratio of the wavelengths

\lambda_1 : \lambda_2 : \lambda_3

is a.

1 : 2 : 3

1 : 3 : 5

1 : \frac{1}{2} : \frac{1}{3}

1 : \frac{1}{3} : \frac{1}{5}

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