Sharanya Asked a Question
April 4, 2021 9:50 pmpts 30 pts
83. In a crystalline solid with N number of unit cells, the number of allowed independent phonon modes of a branch is (A) N (B) 2N C) N (D) N
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  • Devisharan thankyou
    For N unit cells there are N different value of k for each cell that is N independent mode of oscillation. option A is correct. for More information see M.A. Wahab Solid state phys...
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