NEET Sample Paper NEET Sample Test Paper-52

  • question_answer
    Density of substance at \[0{}^\circ C\] is \[10\text{ }gm/cc\] and at\[100{}^\circ \,C\], its density is \[9.7\text{ }gm/cc\]. The coefficient of linear expansion of the substance will be-

    A) \[{{10}^{2}}\]                                    

    B) \[{{10}^{-}}^{2}\]

    C) \[{{10}^{-3}}~\]                    

    D) \[{{10}^{-}}^{4}\]

    Correct Answer: D

    Solution :

    \[\rho ={{\rho }_{0}}\left[ 1-3\alpha \Delta T \right)\] \[9.7-10\left( 1-3\alpha \text{ }100 \right)\] \[a={{10}^{\text{-4}}}\]


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