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cse • paper_2 • solid_state_electronicscse-2017-subject-08-001

Dispersion relation — UPSC CSE 2017 Physics PYQ

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The energy (E) and wave vector (k) for a conduction band electron in a semiconductor are related as E=\alpha\,\dfrac{\hbar^2 k^2}{m_0} where \alpha is a constant and m_0 is the free electron mass. Calculate the effective mass of the electron.

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