Question

An electron hole pair is formed when light of maximum wavelength $6000\stackrel{\circ }{A}$ is incident on the semiconductor. What is the band gap energy of the semiconductor?
$(h=6.62\times {10}^{-34}J-s)$.

• A. $3.31\times {10}^{-19}J$
• B. $3.07\times {10}^{-19}J$
• C. $2.07\times {10}^{-19}J$
• D. $2.07J$

Answer 1

The correct option is A $3.31\times {10}^{-19}J$

Bond energy gap, $E=\frac{hc}{\lambda }$
$=\frac{6.6\times {10}^{-34}\times 3\times {10}^8}{6000\times {10}^{-10}}$
$=3.3\times {10}^{-19}J$.