In Young's double slit experiment, the $10^{\text {th }}$ maximum of wavelength ' $\lambda_1$ ' is at a…
In Young's double slit experiment, the $10^{\text {th }}$ maximum of wavelength ' $\lambda_1$ ' is at a distance of ' $\mathrm{Y}_1$ ' from the central maximum. When the wavelength of the source is changed to ' $\lambda_2$ ', $5^{\text {th }}$ maximum is at a distance ' $Y_2$ ' from the central maximum. The ratio $\frac{\mathrm{Y}_1}{\mathrm{Y}_2}$ is