Two beams of light having intensities \[I\] and 4\[I\] interfere to pr – McqOptions

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1.	Two beams of light having intensities \[I\] and 4\[I\] interfere to produce a fringe pattern on a screen. The phase between the beams is \[\pi /2\] at point A and \[\pi \] at point B. Then, the difference between the resultant intensities at A and B is
A.	\[2I\]
B.	\[4I\]
C.	\[5I\]
D.	\[7I\]
Answer» C. \[5I\]

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