Question

What is the effect on the interference pattern in Young's double-slit experiment when (i) the source slit is moved closer to the plane of the slits, and (ii) the separation between the two slits is increased ? Justify your answers.

Give any two differences between the interference pattern obtained in Young's double-slit experiment and a diffraction pattern due to a single slit.

Draw an intensity distribution graph in case of a double-slit interference pattern.

In Young's double-slit experiment using monochromatic light of wavelength λ, the intensity of light at a point on the screen, where path difference is λ, is K units. Find the intensity of light at a point on the screen where the path difference is λ/6.