RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    Thickness of a glass plate is t and its refractive index is n. Velocity of light in vacuum is c. Then minimum time taken by light in passing through the glass plate is:

    A) \[\frac{ct}{n}\]                 

    B)        \[\frac{nt}{c}\] 

    C) \[nct\]                 

    D)        \[\frac{nc}{t}\]

    Correct Answer: B

    Solution :

    Time taken by light to pass through the glass plate is \[\frac{nt}{C}\].     


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