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10th Class Science Sample Paper Science Olympiad Model Test Paper-17

  • question_answer
    The radius of curvature of a spherical mirror is 6 cm.  What is its focal length?

    A) 3 cm    

    B) 6 cm     

    C) 12 cm

    D) 20 cm      

    E) None of these

    Correct Answer: A

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