ANSWERS: 1

Even I know the answer will be (1/(3^2))  (1/(4^2)) times something. This question isn't as easy to answer as I thought. The problem is knowing what to look up. The answer is http://en.wikipedia.org/wiki/Balmer_series Also: E=hc/lambda is the equation for energy in terms of wavelength lambda. c is the speed of light. h is the unadulterated Planck's constant.
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