2. Solved Papers
  3. BCECE Medical

BCECE Medical BCECE Medical Solved Papers-2009

  • question_answer
    An isotropic source of 2 candela produces a light flux equal to

    A)  \[2\pi \] lumen       

    B)  \[4\pi \] lumen

    C)  \[6\pi \] lumen       

    D)  \[8\pi \] lumen

    Correct Answer: D

    Solution :

    Given, \[L=2\,cd\] The light flux \[\phi =4\pi L\]                 \[=4\pi \times 2\] \[\phi =8\pi \] lumen


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