question_answer

Two coherent monochromatic light beams of intensities \[\overset{0}{\mathop{A}}\,\]and 4\[\overset{0}{\mathop{A}}\,\] superimpose. The maximum and minimum possible intensities in the resulting beam are

A)  5\[\overset{0}{\mathop{A}}\,\] and \[\overset{0}{\mathop{A}}\,\]                       

B)  5\[6\times {{10}^{-5}}\] and 3\[6\times {{10}^{4}}\]       

C)  3\[6\times {{10}^{-3}}\] and \[6\times {{10}^{-6}}\]                       

D)  9\[\frac{Q}{q}\] and \[A=4i+4j-4k\]