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JEE Main & Advanced Sample Paper JEE Main Sample Paper-34

  • question_answer
    A circular steel strip of 1.20 m diameters is to be shrunk to a cart wheel whose average diameter is 0.36 cm greater than the inner diameter of the strip. If the coefficient of linear expansion of steel is \[1.2\times {{10}^{-5}}\,\,per\,{{\,}^{o}}C\], then the temperature to which the strip must be heated in order to just slip on the wheel is:

    A)  \[25K\]                               

    B)  \[{{25}^{o}}C\]

    C)  \[250K\]             

    D)  \[{{25}^{o}}C\]

    Correct Answer: A

    Solution :

    \[\Delta D\,=D\alpha \Delta \theta \]


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