$A$ stretched string is fixed at both ends. It is made to vibrate so that the total number of nodes formed in it is '$x$'. The length of the string in terms of the wavelength of waves formed in it is $(\lambda = \text{wavelength})$
- A$\frac{x \lambda}{2}$
- B$\left(x+\frac{1}{2}\right) \frac{\lambda}{2}$
- C$(x-1) \frac{\lambda}{2}$
- D$(x+1) \frac{\lambda}{2}$
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