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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    A normally incident ray reflected at angle of\[90{}^\circ \]. The value of critical angle is

    A)  \[45{}^\circ \]              

    B)  \[90{}^\circ \]

    C)  \[64{}^\circ \]              

    D)  \[43.5{}^\circ \]

    Correct Answer: B

    Solution :

     The critical angle in total internal reflection will be\[90{}^\circ \].


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