In a two-slit interference experiment, a viewing screen is placed 5 meters directly behind two slits separated by 4 μm. Coherent, monochromatic light of wavelength λ = 700 nm emerges (in phase) from the slits. (Assume the slit width is very small compared to the wavelength λ.)

At what value of x on the screen does the largest-order intensity maximum occur (i.e., the one that is the farthest from the center line)?

Question

In a two-slit interference experiment, a viewing screen is placed 5 meters directly behind two slits separated by 4 μm. Coherent, monochromatic light of wavelength λ = 700 nm emerges (in phase) from the slits. (Assume the slit width is very small compared to the wavelength λ.)

At what value of x on the screen does the largest-order intensity maximum occur (i.e., the one that is the farthest from the center line)?