Light travelling from two light sources produces displacements at point P as follows: $\mathrm{Y}_{1

Question

Light travelling from two light sources produces displacements at point P as follows: $\mathrm{Y}_{1}$ $=3 \sin \omega \mathrm{t}, \mathrm{Y}_{2}=7 \cos \omega \mathrm{t}$. These sources will be\

Professor PC Thomas Classes · Answer

Light from two independent sources need not be coherent.