/2 Two coherent sources of intensity ratio "beeta" interfere, then Imax-Imin /Imax+Iminis ----------- - Physics - Wave Optics

Question

/2 Two coherent sources of intensity ratio "beeta" interfere, then
Imax-Imin /Imax+Imin is
-----------

Akansha Tyagi · Accepted Answer

β=I1I2=a12a22a1a2=β1Imax=a12+a22+2a1a2=(a1+a2)2  Imin=a12+a22-2a1a2=(a1-a2)2 ⇒ Imax-IminImax+Imin=(a1+a2)2-(a1-a2)2(a1+a2)2+(a1-a2)2  =  4a1a22(a12+a22)Imax-IminImax+Imin=2β1+β

/2.Two coherent sources of intensity ratio "beeta" interfere, then Imax-Imin /Imax+Imin is -----------

/2.Two coherent sources of intensity ratio "beeta" interfere, then I_max-I_{min /}I_max+I_min is -----------