J & K CET Medical J & K - CET Medical Solved Paper-2002

  • question_answer
    When arsenic is added as an impurity to silicon the resulting material is :

    A)  n-type conductor

    B)  n-type semiconductor

    C)  p-type conductor

    D)  p-type semiconductor

    Correct Answer: B

    Solution :

                     An amorphous solid is a solid in which there is no long range order of the position of the atoms. Solids in which there is long range atomic order are called crystalline solids. Most classes of solid materials can be found or prepared in an amorphous form. For example glass, polymers, rubber while copper is not an amorphous substance.


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