1991 physics questions with solutions

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• MCQeasyWave OpticsYoung's Double-Slit Experiment (YDSE)

  In Young’s experiment, two coherent sources are placed 0.90 mm apart and fringes are observed 1 m away. If the second dark fringe is at distance 1 mm from central bright fringe, wavelength of monochromatic light used is:

  Options

  • Option A

    60 × 10⁻⁴ cm

  • Option B

    10 × 10⁻⁴ cm

  • Option C

    10 × 10⁻⁵ cm

  • Option D

    6 × 10⁻⁵ cm

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  AIPMT 19921991NEET Previous Year

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