1. The problem statement, all variables and given/known data Hi, For the Young double slit experiment, say I have a plane wavefront approaching the double slit; now, if I halve the width of one of my slits, will the amplitude of the light exiting that slit be halved as well? 2. Relevant equations None directly relevant I know of, but related: Intensity directly proportional to [amplitude]2 nλ=dsinθ λ=(ax)/D 3. The attempt at a solution So I thought that, as the slit width is really very close to the wavelength of light itself, that halving would have a noticeable impact on the amplitude? But I also wondered whether making it much smaller than the wavelength of light as a result would completely block out the light anyway?? Thanks for your help!