21 consecutive nodes vibrate with different frequency phase

Last updated: 6/19/2023

21 consecutive nodes vibrate with different frequency phase and amplitude For visibility of diffraction pattern of waves of 21 ferra fer f pre light size of slit or obstacle should be TE ST 1 of any order 1 farfe 2 of order of wavelength 2 at an 3 very less as compared to wave length 3 143 144