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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2005

  • question_answer
        If two mirrors are kept at\[60{}^\circ \]to each other, then the number of images formed by them is:

    A)  5                                            

    B)  6    

    C)  7                            

    D)  8

    Correct Answer: A

    Solution :

                    Number of images \[n=\frac{360{}^\circ }{\theta }-1\]where \[\theta =\]angle between mirrors Thus,        \[\theta =60{}^\circ \]               (given) So, number of images                 \[n=\frac{360{}^\circ }{60{}^\circ }-1\]                 \[=5\]


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