[填空题]
(a) Use the curve of (Figv ybm; 0i 68euh--p au0n5qxxm.- v ozyb7axk .p;p3hb90nfom tmv/ g,+ Below) to estimate the stiffness constant $ k $ for the $ \text{H}_2 $ molecule. (Recall that $ PE = \frac{1}{2}kx^2 $) k = N/m
(b) Then estimate the fundamental wavelength for vibrational transitions using the classical formula (Chapter 11), but use only the mass of an H atom (because both H atoms move).$\lambda$ = $\mu m$
