One beam of coherent light travels path P1 in arriving at

Last updated: 6/10/2023

One beam of coherent light travels path P1 in arriving at point Q and another coherent beam travels path P2 in arriving at the same point If these two beams are to interfere destructively the path difference P1 P2 must be equal to O an odd number of half wavelengths zero a whole number of wavelengths a whole number of half wavelengths 1