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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    For the curve \[{{y}^{n}}={{a}^{n-1}}\] if the subnormal at any point is a constant then n is equal to :

    A)  1                                            

    B)  2

    C)  - 2                                         

    D)  - 1

    Correct Answer: B

    Solution :

    For the curve \[{{y}^{n}}={{a}^{n-1}}x\]On putting \[n=2\], we get\[{{y}^{2}}=ax\] Which is a curve of the form of parabola, where the subnormal at any point is a constant \[\therefore \]  \[n=2\]


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