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Density of states of free electrons in a solid moving with an energy 0.1 eV is given by 2.15 × 1021 e/V cm-3. The density of states (in e/V cm-3) for electrons moving with an energy of 0.4 eV will be

Density of states of free electrons in a solid moving with an energy 0.1 eV is given by 2.15 × 1021 e/V cm-3. The density of states (in e/V cm-3) for electrons moving with an energy of 0.4 eV will be Correct Answer 4.30 × 10<sup>21</sup>

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