2. Solved Papers
  3. RAJASTHAN PMT

RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    If Fresnels biprism experiment is held in water in spite of air, then what will be the effect on fringe width :

    A)  decrease           

    B)         increase             

    C)         no effect           

    D)         none of these

    Correct Answer: A

    Solution :

    If Fresnels biprism experiment is done in water, then wavelength of light decreases in water, and fringe width \[\beta =\frac{\lambda D}{d}\] will also decrease.


You need to login to perform this action.
You will be redirected in 3 sec spinner