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  3. RAJASTHAN PMT

RAJASTHAN PMT Rajasthan - PMT Solved Paper-1996

  • question_answer
    Two identical soap bubbles of radius R are touching each other. The radius of curvature of the common surface is:

    A)  infinite                                

    B)         R                           

    C)         R/2                                       

    D)         zero

    Correct Answer: A

    Solution :

    Common surface is plane, therefore, its radius of curvature is infinity \[(\infty )\].


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