Question

The intensity of central maximum in the interference pattern obtained by two coherent sources of wavelength $\lambda$ and amplitude a is I. In other experiment, the intensity of central maximum in the interference pattern obtained by two non – coherent sources of wavelength $\lambda$ and amplitude a is I' The value of I' will be

• A. I
• B. $\frac{I}{2}$
• C. $\frac{I}{3}$
• D. $\frac{I}{4}$

Answer 1

The correct option is B $\frac{I}{2}$

$I=4I_0,I^1=2I_0$