9th Class Science Is Matter Around Us Pure Question Bank Is Matter Around us Pure

  • question_answer
    How is Brownian motion caused?

    A)  Through temperature fluctuations within the liquid phase

    B)  Through attraction and repulsion between the charges on the colloidal particles

    C)  Through collision of molecules between the colloidal particles  

    D)  Through pressure variations within the liquid phase

    Correct Answer: C

    Solution :

     Brownian motion is caused due to collision of molecules between colloidal particles.


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