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Question: The energy gap of a semiconductor is 1.10 eV. The maximum wavelength in Å at which it starts energy ...

The energy gap of a semiconductor is 1.10 eV. The maximum wavelength in Å at which it starts energy absorption will be –

A

11.284

B

112.84

C

1128.4

D

11284

Answer

11284

Explanation

Solution

E = hcλ\frac{hc}{\lambda}

l = 19.8×10−261.1×1.6×10−19\frac{19.8 \times 10^{- 26}}{1.1 \times 1.6 \times 10^{- 19}} = 11284 Å