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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2010

  • question_answer
    When light rays from the sun fall on a convex lens along a direction parallel to its axis.

    A)  Focal length for all colors is the same

    B)  Focal length for violet color is the shortest

    C)  Focal length for yellow color is the longest

    D)  Focal length for red color is the shortest

    Correct Answer: A

    Solution :

     Focal length for violet colour is minimum.


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