na anla y n 2 21LA Yn In 1 B 0 Two incoherent line sources S

Last updated: 6/8/2023

na anla y n 2 21LA Yn In 1 B 0 Two incoherent line sources S and S each emitting monochromatic light of wavelength are placed symmetrically in front of an opaque screen A containing two symmetrically positioned slits In front of screen A another white screen B is placed as shown schematically in the figure Distance between the sources is I and that between the slits is d Distance between the sources and the screen A as well as that between screens A and B is D The distance D is much larger than the distances I and d For what values of the distance between the sources no stationary interference pattern will be observed on the screen B Ans 1 2n 1 AD n 0 1 2 d S 1 S2 d D D