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JEE Main & Advanced JEE Main Paper Phase-I (Held on 09-1-2020 Evening)

  • question_answer
    In a Young's double slit experiment 15 fringes are observed on a small portion of the screen when light of wavelength 500 nm is used. Ten fringes are observed on the same section of the screen when another light source of wavelength \[\lambda \] is used. Then the value of \[\lambda \] is (in nm) _______. [JEE MAIN Held on 09-01-2020 Evening]

    Answer:

    750


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