Q 11 :    

Two coherent monochromatic light beams of intensities 4I and 9I are superimposed. The difference between the maximum and minimum intensities in the resulting interference pattern is xI. The value of x is ________.          [2025]



(24)

Imax=(I1+I2)2=(4I+9I)2=25I

Imin=(I1I2)2=(4I9I)2=I

ImaxImin=24I  x = 24