Question:

Light with a wavelength of 654 nm falls on double slits of

Last updated: 7/23/2022

Light with a wavelength of 654 nm falls on double slits of

Light with a wavelength of 654 nm falls on double slits of width a, a distance d apart. The 8th order interference minimum is 11.8 cm from the central maximum on a screen 4.92 m away. The 2nd order diffraction minumum is at an angle of 1.78" a) What is the distance d? b) What is the width a?