State the laws of vibrating strings and explain how they can be verifi

1.	State the laws of vibrating strings and explain how they can be verified using a sonometer.
Answer» The fundamental is the first harmonic. Therefore, the ratio of the fundamental frequency (n) to the second harmonic (n₁) is 1 : 2. Here, L = 3\(\cfrac{\lambda}{2}\) \(\therefore\) Wavelength, λ = \(\cfrac{2L}{3}\) = \(\cfrac{2\times 30}{3}\) = 20 cm.

State the laws of vibrating strings and explain how they can be verified using a sonometer.

Answer»

The fundamental is the first harmonic. Therefore, the ratio of the fundamental frequency (n) to the second harmonic (n₁) is 1 : 2.

Here, L = 3\(\cfrac{\lambda}{2}\)

\(\therefore\) Wavelength, λ = \(\cfrac{2L}{3}\) = \(\cfrac{2\times 30}{3}\) = 20 cm.