1. Examine the spectrums of the radiation of helium, hydrogen and mercury.
2. Examine the spectrum of the Sun’s radiation.
Pay attention to yellow, light-green and blue line of mercury on long-wave part of helium spectrum. Define from what levels 4 lines of the spectrum of the hydrogen appear. Have in mind that for all line of the visible spectrum transition is realized on the second quantum level.
3. Measure the lengths of the waves of the spectrum of the hydrogen radiation.
Do the measurements with a virtual rules. The rules moves up and down at snub by mouse on field from the side of spectrum.
4. Define the frequencies for these line.
On measured length of the waves calculate the frequencies of these four lines.
5. Define the Plank’s constant.
On formulas of Born’ theories calculate a Plank’s constant for these four lines, but the results do average.
6. Do the conclusion.
In conclusion pay attention to the lengths of the radiation and absorptions lines. Also pay attention to spectrum regularities and possibility on spectrum’s lookout to define the Plank’s constant.
Authors: Serpetsky B.A., the reader, candidate of physical and mathematical sciences.
Reviewer: Loskutov S.V., professor, doctor of physical and mathematical sciences.