Geometrical OpticsHard
Question
Two coherent monochromatic light beam of intensities I and 4I are suspeeposed. The maximum and minimum possible intensities in the resulting beam are
Options
A.5 I and 3 I
B.5 I and I
C.9 I and I
D.9 I and 3 I
Solution
Imax = (√I1 + √I2)2 = (√4I + √I)2 = 9I
Imin = (√I1 - √I2)2 = (√4I - √I)2 = I
Imin = (√I1 - √I2)2 = (√4I - √I)2 = I
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