Question

Problem about double-slit interference.

a) Choose and state a wavelength in the electromagnetic spectrum that corresponds to visible light.

b)We would like it to be easy to measure the positions of the dark and bright fringes so let’s aim for having a distance of 1cm between adjacent bright fringes. Choose the distance of the screen and the distance between the slits so that this is the case. The slit distance should be much bigger than the wavelength, but much smaller than 1cm. The screen distance should be much bigger than 1cm. Make a sketch of your setup.

Answer 1