A) \[5I\]and O
B) \[5I\] and\[3I\]
C) \[9I\] and I
D) \[9I\] and\[3I\]
Correct Answer: C
Solution :
Maximum intensity, \[{{I}_{\max }}={{(\sqrt{{{I}_{1}}}+\sqrt{{{I}_{2}}})}^{2}}\] \[={{(\sqrt{I}+\sqrt{4I})}^{2}}\] \[=9I\] Minimum intensity\[{{I}_{\min }}={{(\sqrt{{{I}_{1}}}-\sqrt{{{I}_{2}}})}^{2}}\] \[={{(\sqrt{I}-\sqrt{4I})}^{2}}\] \[=I\]
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