Please include full solution, formulas, and right answer and please do this asap thanks in advance

4. For a light with A = 450 nm going through 2 slits the path length difference at a node is 1575 nm. What is the nodal line number? [K2] of of feudput ertl al nguorti alevent Innil now lio o to portions of coultby ned out el notlosthid je fon lilw moloo 5. Light with A = 620 nm through a single slit displays an interference pattern on a screen that is 8.0 m away. The angle of the 2nd node is 0.89. a) What is the width of the central maximum in nm? [A4]