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10th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    An object of size of 7 cm is placed at a distance of 27 cm in front of concave mirror of focal length 18 cm. At what distance from the mirror, should a screen be placed so that a sharp focused image can be obtained?

    A) 18 cm in front of the mirror

    B) 18 cm behind the mirror

    C) 27 cm in front of the mirror

    D) 54 cm in front of the mirror

    E) None of these

    Correct Answer: D

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