If the sodium light in Young's double slit ex | vedclass

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(B) The fringe width $(\beta)$ in Young's double slit experiment is given by the formula $\beta = \frac{\lambda D}{d}$, where $\lambda$ is the wavelen

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(B) The fringe width $(\beta)$ in Young's double slit experiment is given by the formula $\beta = \frac{\lambda D}{d}$, where $\lambda$ is the wavelength of light, $D$ is the distance between the slits and the screen, and $d$ is the distance between the two slits.From the formula, it is clear that $\beta \propto \lambda$.The wavelength of red light $(\lambda_{red})$ is greater than the wavelength of sodium light $(\lambda_{sodium})$.Since $\lambda_{red} > \lambda_{sodium}$, the fringe width will increase.

If the sodium light in Young's double slit experiment is replaced by red light, the fringe width will

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