A) the fringe pattern will get shifted towards the covered slit
B) the fringe pattern will get shifted away from the covered slit
C) the bright fringes will become more bright and the dark ones will become less bright
D) the fringe width will changed
Correct Answer: A
Solution :
[a] \[{{I}_{\max }}={{(\sqrt{{{I}_{1}}}+\sqrt{{{I}_{2}}})}^{2}}={{\left( \sqrt{{{I}_{1}}}+\sqrt{\frac{I}{2}} \right)}^{2}}<4I\] \[{{I}_{\min }}={{\left( \sqrt{{{I}_{1}}}-\sqrt{\frac{I}{2}} \right)}^{2}}>0\]
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