[填空题]
(a) Show that the so-callen( o;xev0y t1d2pq6ist7 m+med unification distan0ju 0n6lui jxthj7wop+x+54i yr5q e.e/ki9m ce of $10^{-31}\ \text{m}$ in grand unified theory is equivalent to an energy of about $10^{16}\ \text{GeV}$. Use the uncertainty principle, and also de Broglie's wavelength formula, and explain how they apply. $\Delta E$ = $ \times 10^{16}$GeV E = $ \times 10^{15}$
(b) Calculate the temperature corresponding to $10^{16}\ \text{GeV}$. E = $10^{28} K$
