Xavier Richardson
5. Why do the light photons passing up through the box have different colors?
- It is because they represent the different energy levels of the spectrometer.
7. How many different color (energy) photons have left the box and been detected by the
spectrometer?
- There are 5 different color photons that have been detected by the spectrometer.
8. If white light is illuminating the box, why aren’t all ROYGBIV spectral color photons
leaving the box and being detected by the spectrometer?
- They may have low enough energy levels to not be detected by the spectrometer or its
capabilities may be limited to only a certain amount of colors.
9. List the wavelengths of the different photons leaving the box and being detected by the
spectrometer.
- White=92, 94, 121, 4140, 5520, 7500; Violet=410; Blue=440; Turquoise=490;
Red=655
10. Calculate the energy (in electron volts) of the shortest wavelength photon shown by
the spectrometer.
- (speed of light, 3x10^8) = (wavelength, 92)(frequency)
(wavelength, 92)
(wavelength, 92)
(energy of photon) = (Plank’s constant, 6.626x10^-34)(speed of light, 3x10^8)
(wavelength, 92x10^-9)
(energy of photon) = 2.15869x10^-18
12. Is the wavelength axis of the spectrometer graph linear?
- It is not linear because the graphs indicators are not evenly spaced apart. It seems that
they are trying to emphasize the visible light rather than the other lights not visible.
Xavier Richardson
14. How can you explain the shape of your bar graph?
- As you continue to read the data along the x-axis of the graph, you will find that there is
a big difference between the individual intensity and wavelengths and there is are big
differences between the first bits of data regarding the intensity and the last bits.