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Two coherent sources whose intensity ratio is $64 :1 $ produce interference fringes. The ratio of intensities of maxima and minima is :
\[\begin {array} {1 1} (1)\;9:7 & \quad (2)\;8:1 \\ (3)\;81:49 & \quad (4)\;81 : 7 \end {array}\]
jeemain
eamcet
physics
2010
q106
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Sep 30, 2013
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meena.p
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(3) 81 : 49
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Nov 7, 2013
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pady_1
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