JEE Main & Advanced Sample Paper JEE Main - Mock Test - 2

  • question_answer
    Number of significant figures in Loschmidt number and Boltzmann constant are, respectively,

    A) 2 and 2               

    B) 3 and 3              

    C) 4 and 3    

    D) 3 and 4

    Correct Answer: C

    Solution :

     [c] Loschmidt number\[=2.687\times {{10}^{25}}{{m}^{-3}}\] = 4 significant figures Boltzmann constant (k) =\[1.38\times {{10}^{-23}}J{{K}^{-1}}\] = 3 significant figures.      


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