%<PLAINTEXT>
% 
% $BNL;RJ*M}3X(B : $B1i=,LdBj(B 1-9 $B2rEz(B
% $B:n(B  $B@.(B  $B<T(B : t9410126$B!!DZ0f(B $B=(OB(B
% $B:n@.G/7nF|(B : /95/12/20
% $BEE;R%a!<%k(B : t9410126@edu.cc.uec.ac.jp
%
% \mondai{$B:n@.<T(B}{$B:n@.G/7nF|(B}{$BEE;R%a!<%k(B}{$BLdBjHV9f(B}{$BLdBjJ8(B}{$B2rEz(B}
%
\mondai
{t9410126 $BDZ0f(B $B=(OB(B}
{95/12/20}
{t9410126@edu.cc.uec.ac.jp}
{1-9}
{
$BB@M[$+$iCO5e$NI=LL(B $ 1{\rm cm^{2}} $ $B$KKhJ,(B2{\rm cal}$B$NG.$,J|<M$5$l$k!#(B
$B$3$l$,!"(B$ 0.5 {\rm \mu m} $ $B$N8w$G$"$k$H$7$F!"CO5e$NI=LL(B 
$ 1{\rm cm^{2}} $ $B$KKhIC2?8D$N8w;R$r<u$1$F$$$k$3$H$K$J$k$+!)(B
$B$^$?B@M[$+$i$9$Y$F$N8w;R$,6u5$Cf$G8:?j$9$k$3$H$J$/$U$j$=$=$$(B
$B$@$H$9$k$H!"B@M[$OKhIC$I$l$/$i$$$N8w;R$r$@$7$F$$$k$+!)(B
$BB@M[$O2?(B{\rm W}$B$NEEG.4o$KEy$7$$$+I>2A$;$h!#(B
 }
{
$BGHD9(B $ \lambda=0.5{\rm \mu m} $ $B$N8w$N8w;R(B1$B8D$N%(%M%k%.!<(B$E$$B$O(B
\begin{equation}
        E=h\nu=\frac{hc}{\lambda}
\label{eq:Q1-9-1}
\end{equation}
$ h $:$B%W%i%s%/Dj?t!!(B$ c $:$B??6uCf$G$N8w$NB.$5!!$h$j(B
\begin{equation}
        E=\frac{6.63 \times 10^{-34} \times 3.00 \times 10^{8}}
               {0.5 \times 10^{-6}} \hspace{2mm} {\rm J}
\label{eq:Q1-9-2}
\end{equation}
$B$H5a$a$i$l$k!#CO5e$NI=LL(B $ 1{\rm cm^{2}} $ $B$K$OKhJ,(B2{\rm cal}$B$NG.$,(B
$BJ|<M$5$l$F$$$k$+$i!"(B1$BIC4V$KJ|<M$9$kG.$O!"%8%e!<%k$NDj?t(B(=4.19)$B$rMQ$$$F(B
\begin{equation}
        2 \times 4.19 \times \frac{1}{60} \hspace{2mm} {\rm J}
\label{eq:Q1-9-3}
\end{equation}
$B$H$J$k!#$7$?$,$C$FCO5e$NI=LL(B $ 1{\rm cm^{2}} $ $B$K$O(B(\ref{eq:Q1-9-2})$B$H(B
(\ref{eq:Q1-9-3})$B$h$jKhIC(B
\begin{equation}
        2 \times 4.19 \times \frac{1}{60} \times 
        \frac{0.5 \times 10^{-6}}
             {6.63 \times 10^{-34} \times 3.00 \times 10^{8}}
        =3.510 \times 10^{17} \hspace{2mm} $B8D(B
\label{eq:Q1-9-4}
\end{equation}
$B$N8w;R$r<u$1$F$$$k!#B@M[$NCf?4$+$iCO5e$NI=LL$^$G$N5wN%$,H>7B(B 
$ r {\rm cm} $ $B$N5e$r9M$($F!"$=$N5eLL$N(B $ 1{\rm cm^{2}} $ $B$K(B
$BJ|=P$5$l$k8w;R$NNL$,(B(\ref{eq:Q1-9-4})$B$G5a$a$i$l$F$$$k$N$G!"(B
$B$=$l$r5eLLA4BN$K9-$2$k$H!"B@M[$,(B1$BIC4V$K=P$7$F$$$k8w;R$NNL$O(B$
3.510 \times 10^{17} \times 4 \pi r^{2} $B8D(B $$B$H$J$k!#M}2JG/I=(B
$B!JJ?@.(B6$BG/HG!K$h$j(B $ r $ $B$O(B$ 1.496 \times 10^{13} {\rm cm} $$B!#(B
$B$3$l$+$iB@M[$,(B1$BIC4V$K=P$7$F$$$k8w;R$NNL$O(B
\begin{equation}
        3.510 \times 10^{17} \times 4 \pi \times 
        (1.496 \times 10^{13})^{2}
        =9.871 \times 10^{44} \sim 1.0 \times 10^{45}
        \hspace{2mm} $B8D(B
\label{eq:Q1-9-5}
\end{equation}
$B$H$J$k!#$5$i$K(B1$BIC4V$KB@M[$O(B
\begin{equation}
        9.871 \times 10^{44} \times \frac{6.63 \times 10^{-34} 
        \times 3.00 \times 10^{8}}{0.5 \times 10^{-6}}
        =3.926 \times 10^{26} \sim 
        3.9 \times 10^{26} \hspace{2mm} {\rm J}
\label{eq:Q1-9-6}
\end{equation}
$B$NG.$rH/@8$7$F$$$k$3$H$K$J$k!#=>$C$FB@M[$O(B
$ 3.9 \times 10^{26} {\rm W} $
$B$NEEG.4o$KEy$7$$!#(B
}
