Young's double slit (1 Viewer)

[NexusRich]

Could someone please explain how changing the variables in the double slit set up would affect the interference patterns ? Thanks

 

[Qeru]

Could someone please explain how changing the variables in the double slit set up would affect the interference patterns ? Thanks

Every double slit question ever stems from two equations:



E.g. for the first one green light has wavelength=550nm. So you increasing lambda therefore X (the distance between maximums) must also increase as they are directly proportional (as seen in eqn 2) everything else is constant in eqn 2. Same logic for every question.