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The wavelength of light emitted by a GaAs laser is 8670...

This question belongs to Electronics And Communications Engineering Materials And Components
Materials and Components
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The wavelength of light emitted by a GaAs laser is 8670 × 10-10 m. Given Planck's constant = 6.6256 × 10-34 Js, velocity of light = 2.998 × 108 ms-1 and 1eV = 1.602 × 10-19 J, the energy gap in GaAs is

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Correct Answer: Option C
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