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10th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high. Find the focal length of the mirror.

    A) \[-13\text{ }cm\]

    B) \[-\,\,20\,\,cm\]            

    C)     \[-\,\,24\,\,cm\]  

    D) \[-\,\,35\,\,cm\]            

    E)     None of these                  

    Correct Answer: C

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