%<PLAINTEXT>
%
% $BNL;RJ*M}3X(B : $B1i=,LdBj(B 11-4 $B2rEz(B
% $B:n(B  $B@.(B  $B<T(B : g140828 $BIp@n!!=c(B
% $B:n@.G/7nF|(B : /01/12/25
% $BEE;R%a!<%k(B : g140828@mail.ecc.u-tokyo.ac.jp
%
% \mondai{$B:n@.<T(B}{$B:n@.G/7nF|(B}{$BEE;R%a!<%k(B}{$BLdBjHV9f(B}{$BLdBjJ8(B}{$B2rEz(B}
%
\mondai
{g140828 $BIp@n!!=c(B}
{01/12/25}
{g140828@mail.ecc.u-tokyo.ac.jp}
{11-4}
{$B$"$kH>F3BN$O>o29$G!"(B$1\mu
m$$B0J2<$N8w$@$H5[<}$5$l$k$3$H$,$o$+$C$F$$$k!#$3$NH>F3BN$N%(%M%k%.!<%.%c%C%W$O(B
$B2?(B$eV$$B$+!)$^$?!"@D?'$N8w$rH/$9$kH>F3BN$O%(%M%k%.!<%.%c%C%W$,2?(B$eV$$BDxEY$G$J$1(B
$B$l$P$J$i$J$$$+!)(B}
{
$1\mu m$$B$NGHD9$N%(%M%k%.!<$O!"(B
\begin{equation}
E = \frac{hc}{\lambda }
\end{equation}
$B$h$j!"(B$h = 6.626\times 10^{ - 34}J \cdot s,c = 2.998\times 10^8m \cdot s^{ -
1},1eV = 1.602\times 10^{ - 19}J$$B$rMQ$$$F(B
\begin{equation}
E \approx 1.239eV
\end{equation}
$B$H$J$k!#$h$C$F!"$3$NH>F3BN$N%(%M%k%.!<%.%c%C%W$NBg$-$5$O#1!%#2#4(B$V$$B!J0J2<!K(B
$B$G$"$k!#!V0J2<!W$H$7$?$N$O!"5[<}$,$*$-$J$$$b$N$b$"$k$+$i$G$"$k!#(B
\\
\\
$B$^$?!"@D?'$N8w$NGHD9NN0h$O(B$0.43\mu m\sim 0.49\mu m$$B$G$"$k$N$G(B
\begin{equation}
E = \frac{hc}{\lambda }
\end{equation}
$B$h$j!"(B$h = 6.626\times 10^{ - 34}J \cdot s,c = 2.998\times 10^8m \cdot s^{ -
1},1eV = 1.602\times 10^{ - 19}J$$B$rMQ$$$F(B$E$$B$O(B2.53$eV$$\sim
$2.88$eV$$B!#$h$C$F!"(B2.53$eV$$\sim $2.88$eV$$B$N%(%M%k%.!<%.%c%C%W$G$"$k!#(B
}


