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KVPY Sample Paper KVPY Stream-SX Model Paper-12

  • question_answer
    In an interference experiment the ratio of amplitudes of coherent waves is \[\frac{{{a}_{1}}}{{{a}_{2}}}=\frac{1}{3}.\]The ratio of maximum and minimum intensities of fringes will be:

    A) 9

    B) 2

    C) 18

    D) 4

    Correct Answer: D

    Solution :

    \[{{a}_{1}}:{{a}_{2}}=1:3\] \[\frac{{{I}_{1}}}{{{I}_{2}}}={{\left( \frac{4}{2} \right)}^{2}}=4:1\]


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