Interference pattern is obtained with two coherent light sources of intensity ratio 'b'. In the interference pattern, the ratio of Imax−$$IminImax+Imin$$ will be

Question

Interference  pattern is obtained with two coherent light sources of intensity ratio 'b'.   In the interference pattern, the ratio of  Imax−$$IminImax+Imin$$       will  be

Infinity Learn · Accepted Answer

The given values are   Intensity $$I1=b$$     Intensity $$I2=1$$     Imax−$$IminImax+Imin=(I1+I2)2$$−(I1$$−$$I2)2(1+I2)2+(I1$$−$$I2)2$$                           $$=4$$.$$I1$$.$$I22(I1+I2)                           $$=2I1$$.$$I2I1+I2$$                          $$=2b1b+1$$     ∴ Imax−$$IminImax+Imin$$     $$=2bb+1$$

Interference pattern is obtained with two coherent light sources of intensity ratio 'b'. In the interference pattern, the ratio of $\frac{I_{\max} - I_{\min}}{I_{\max} + I_{\min}}$ will be

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Interference pattern is obtained with two coherent light sources of intensity ratio 'b'. In the interference pattern, the ratio of Imax−IminImax+Imin will be

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Interference pattern is obtained with two coherent light sources of intensity ratio 'b'. In the interference pattern, the ratio of $\frac{I_{\max} - I_{\min}}{I_{\max} + I_{\min}}$ will be