A 2.00 µm-wide slit (assuming infinitely long) is illuminated with plane waves from a helium-neon laser of wavelengths 632.8 nm. Find the distance from the zeroth-order maximum to the first two irradiance nulls (zeroth to 1st and zeroth to 2nd), and to the first- and second-order irradiance maxima when the pattern is observed on a wall at Z= 1.0 m away. The small angle approximation [sin(0) ~ 0] is valid in some cases, but calculating the exact angle [x = sin 0 → 0 = sin¬1 x] leads you to an accurate answer in this problem.

Can you answer both Pictures-Problems that are related?

I do not need a quick answer, but I hope it is correct and in clear handwriting if you don't mind

Answer what is asked. Take your time to answer, will give you thumbs up. You may draw to further explain the solution. Thank you

can you help me answer this one in handwriting please?