12th Class Physics Sample Paper Physics Olympiad Sample Paper-4

  • question_answer Monochromatic light of wavelengths 400 nm and 560 nm are incident simultaneously and normally on double slit apparatus whose slit separation is 0.1 mm and screen distance is 1 m. Distance between areas of total darkness will be

    A)  \[4\text{ }mm\]            

    B)  \[5.6\text{ }mm\]       

    C)  \[28\text{ }mm\]          

    D)  \[14\text{ }mm\]

    Correct Answer: D

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