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Railways Sample Paper RRB (Group D) Sample Test Paper-3

  • question_answer
    An air bubble inside water behave as an:

    A)  Bifocal lens /    

    B)  convergent lens /

    C)  Divergent lens /

    D)  cylindrical lens

    Correct Answer: C

    Solution :

    [c] The air bubble will behave as a diverging lens due to its bulging curvature.


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