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NEET NEET SOLVED PAPER 2019

  • question_answer
    In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact, what will angle of refraction? [NEET 5-5-2019]

    A) Equal to angle of incidence          

    B) \[90{}^\circ \]

    C) \[180{}^\circ \]            

    D)   \[0{}^\circ \]

    Correct Answer: B

    Solution :

    In TIR If \[i={{\theta }_{cr}}\] \[r=90{}^\circ \]


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