UPSC Physics Electric Current and Magnetism Question Bank Electricity, Magnetism and Light

  • question_answer
          A refracting telescope consists of                           [NDA]

    A) one concave mirror and one convex lens

    B) two convex lenses of equal focal length

    C) two concave mirrors of different focal lengths

    D) two convex lenses of unequal focal lengths

    Correct Answer: D

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