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NEET Sample Paper NEET Sample Test Paper-8

  • question_answer
    An object is placed in front of a convex mirror at a dstance of 50cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30cm, there is no parallel between the images formed by the two mirrors. The radius of curvature the convex mirror (in cm) is:

    A)  60                  

    B)  50

    C)  30                  

    D)  25

    Correct Answer: D

    Solution :

    For convex mirror \[u=-50cm,\] \[\upsilon =10cm\] \[\frac{1}{\upsilon }+\frac{1}{u}=\frac{1}{f}\] \[f=12.5cm\] So,      \[R=2f=25cm\]


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