We're asked to **determine the range for the resulting wavelength **if **m = 1** and **R = 1.097 x 10 ^{7}m^{-1}**

$\overline{)\frac{1}{\lambda}{=}{R}{\times}\left(\frac{1}{{2}^{2}}-\frac{{\displaystyle 1}}{{\displaystyle {m}^{2}}}\right)}$

1/λ = R ((1/2^{2})—(1/m^{2}))

If m=1, in what range are the wavelengths calculated from the generalized formula shown above?

R= 1.097*10^{7} m^{-1}

a) microwave (1 to 10^{-4} m)

b) infrared (10^{-3} to 7*10^{-7} m)

c) visible (7*10^{-7} to 4*10^{-7} m)

d) ultraviolet (4*10^^{-7} to 10^{-8} m)

e) X rays (10^{-8} to 10^{-13} m)

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