(આપેલ : $h =6.63 \times 10^{-34} \,Js$ અને $c =3.08 \times 10^{8} \,ms ^{-1}$ )
$=\frac{6.63 \times 3.08 \times 10^{-17}}{600}$
$=0.034034 \times 10^{-17}$
$=340.34 \times 10^{-21} \,J$
$\Delta_{0}=\frac{9}{4} \Delta_{ t }$
$=\frac{9}{4} \times 340.34 \times 10^{-21}$
$=765.765 \times 10^{-21}\, J$
$\approx 766 \times 10^{-21} \,J$