In Young's double slit experiment, the ' $\mathrm{n}^{\text {th ' }}$ maximum of wavelength ' $\lambda_1$ '…
In Young's double slit experiment, the ' $\mathrm{n}^{\text {th ' }}$ maximum of wavelength ' $\lambda_1$ ' is at a distance ' $y_1$ ' from the central maximum. When the wavelength of the source is changed to ' $\lambda_2$ ', $\left(\frac{\mathrm{n}}{2}\right)^{\text {th }}$ maximum is at ' $\mathrm{y}_2$ ' from its central maximum. The ratio $\frac{\mathrm{y}_1}{\mathrm{y}_2}$ is