%<PLAINTEXT>
% 
% $BNL;RJ*M}3X(B : $B1i=,LdBj(B 1-1 $B2rEz(B
% $B:n(B  $B@.(B  $B<T(B : y9410205 Yuzri Mohd 
% $B:n@.G/7nF|(B : /95/10/31
% $BEE;R%a!<%k(B : y9410205@edu.uec.ac.jp
%
% \mondai{$B:n@.<T(B}{$B:n@.G/7nF|(B}{$BEE;R%a!<%k(B}{$BLdBjHV9f(B}{$BLdBjJ8(B}{$B2rEz(B}
%
\mondai
{y9410205 Yuzri Mohd}
{95/10/31}
{y9410205@edu.uec.ac.jp}
{1-1}
{1 eV $B$N8w$NGHD9$O2?(B $\mu m$$B$+(B? $B2?(B\AA $B$+(B?}
{
Einstein $B$K$h$k$H8w$O%(%M%k%.!<(B $E$ $B$r;}$C$F$$$k8w;R$+$i$J$C$F(B
$B$$$k!#$3$N8w;R$N(B $B%(%M%k%.!<(B $E$ $B$O$"$kDj?t$+$1$k?6F0?t(B $\nu$$B$H(B
$BEy$7$$!#(B
\begin{equation}
E = h\nu
\label{eq:1-1-1}
\end{equation}
$B$3$3$G(B $h$ $B$O%W%i%s%/Dj?t$H8F$V!#(B $h = 6.6260755 \times
10^{-34} \hspace{2mm}$Js$B!#$^$?(B
\begin{equation}
1.602177 \times 10^{-19} \hspace{2mm}{\rm J} = 1
\hspace{2mm}{\rm eV} 
\end{equation}
$B$h$j!"%W%i%s%/$NDj?t$OEE;R%\%k%H$GI=8=$9$k$H!"(B
\begin{equation}
6.6260755 \times 10^{-34} \hspace{2mm}J\cdot s = 1 \times
\frac{6.6260755 \times 10^{-34} }{1.602177 \times 10^{-19}}
= 4.136 \times 10^{-15} \hspace{2mm}{\rm}eV\cdot s
\end{equation}
$B$rF@$k!#$^$?(B, $B8w$NGHD9(B $\lambda$ $B$H?6F0?t(B $\nu$ $B$N4X78$O(B
\begin{equation}
\lambda = \frac{c}{\nu} \Longrightarrow \nu = \frac{c}{\lambda}
\label{eq:1-1-3}
\end{equation}
$B$G$"$k$+$i!"$3$l$r(B(\ref{eq:1-1-1})$B$KBeF~$9$k$H(B
\begin{equation}
E = h\frac{c}{\lambda} \Longrightarrow \lambda =
\frac{hc}{E} ; \mbox{ ( $B8w$NB.EY(B }c = 2.99792458 \times 10^8
\hspace{2mm}{\rm m}{\rm s}^{-1})
\end{equation}
$B$7$?$,$C$F(B(\ref{eq:1-1-3})$B$h$j(B 1 eV $B$N8w$NGHD9(B
\begin{equation}
\lambda = \frac {(4.136 \times 10^{-15})(2.99792458 \times
10^8)}{1} = 1.2398 \times 10^{-6} \hspace{2mm}{\rm m} = 1.24 \hspace{2mm}\mu {\rm m}
\end{equation}
$B$rF@$k!#$^$?(B, $1 {\rm \AA} = 10^{-10}$m $B$h$j(B
\begin{equation}
1.2398 \times
10^{-6} \hspace{2mm}m = \frac{1.2398 \times 10^{-6}}{10^{-10}} =
12398 \hspace{2mm}{\rm \AA}
\end{equation}
$B$7$?$,$C$F(B 1 eV $B$N8w$NGHD9$O!"(B
\begin{equation}
\lambda = \mbox{\boldmath 1.24 $\mu m$ = 12398 {\rm \AA}}
\end{equation}
$B$K$J$k!#(B}

