Fridge spacing w= wavelength x distance from slits to the screen is D/ s spacing between splits
fridge space is small so ensure measurement correct by measuring across lots of fringes widths to find average
Using white light instead of laser instead of clear bright and dark fringes middle fridge is just bright white light and all fridges spread out. Side fringes have a spec of visible color blue diffracts less than red so is nearer the centre of the screen
Side fringes have a spec of visible color blue diffracts less than red so is nearer the centre of the screen
What is a primary danger associated with high power lasers?