BHU PMT BHU PMT (Screening) Solved Paper-2007

  • question_answer
    Which of the following is an amorphous solid?

    A)  Glass                                   

    B)  Diamond

    C)  Salt                                       

    D)  Sugar

    Correct Answer: A

    Solution :

                     An amorphous solid is a solid in which there is no long range order of the positions of the atoms. Most classes of solid materials can be found or prepared in an amorphous form. For instance, common window glass is an amorphous ceramic. These materials are often prepared by rapidly cooling molten material. The cooling reduces the mobility of materials molecules before they can pack into a more thermodynamically favourable crystalline state.


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