Physics - Wave Optics Question with Solution | TestHub

In a Young's double slit experiment, a light of wavelength $500\mathrm{nm}$ falls on it. Its slits separation is $2\mathrm{mm}$ and distance between plane of slits and screen is $2\mathrm{m}$ then, find distance of a point on the screen from central maxima where intensity becomes $50\%$ of central maxima.