Calculate wavelength from a known distance and color for Helium

Click For Summary
SUMMARY

The discussion centers on calculating the wavelength of Helium based on known color ranges and a provided chart of specific wavelengths. The user seeks to match the colors violet, blue, green, orange, yellow, and red to the corresponding wavelengths of Helium, specifically noting a challenge in finding a suitable wavelength for yellow within the range of 550-580 nm. The user concludes that the closest match for yellow is 587.6 nm, despite it not being an exact fit. The conversation highlights the importance of understanding wavelength and color relationships in spectroscopy.

PREREQUISITES
  • Understanding of wavelength and frequency relationships in physics
  • Familiarity with the electromagnetic spectrum and color ranges
  • Knowledge of Helium's spectral lines and their corresponding wavelengths
  • Basic skills in data interpretation and analysis
NEXT STEPS
  • Research Helium's spectral lines and their significance in spectroscopy
  • Learn about the calculation of wavelength using the formula wavelength = c/v
  • Explore the electromagnetic spectrum and its application in identifying colors
  • Investigate methods for resolving discrepancies in wavelength data for color matching
USEFUL FOR

Students and professionals in physics, chemistry, and engineering fields, particularly those interested in spectroscopy, colorimetry, and the properties of gases like Helium.

NIN_GIRL81
Messages
3
Reaction score
0
Hi all!

I just joined the forums and hopefully my question is in the right place and isn't a lame one but I'm stuck so here goes:

I want to know how to calculate wavelength from a known distance and color for Helium. I need exact wavelength. I already have the ranges obviously. Usually it's wavelength=c/v but I don't have frequency so any help would be greatly appreciated. Thanks.

:)
 
Chemistry news on Phys.org
What do you mean by distance?
Also color is frequency... so presumably if you know one - you know the other.
 
lzkelley said:
What do you mean by distance?
Also color is frequency... so presumably if you know one - you know the other.

sorry, I just realized that I was given a chart of Helium Wavelengths and the distances are to be used for something else:

447.1
468.6
471.3
492.2
501.6
587.6
667.8
706.5

I have six colors: violet, Blue, Green, Orange, Yellow, and Red which all have ranges.
violet: 380-420
blue: 440-470
green: 500-520
orange: 580-620
yellow: 550-580
red: 620-700

I think I am supposed to pick the wavelength from the given chart based on these ranges. Most work except for yellow. Yellow is in 550-580 and I don't see a wavelength that would fit in this range that is given above. And I must have six colors so I can't ignore the yellow.
 
what about the 587.6, its pretty close?
 
Yeah I guess, I will have to use that. I don't see another option. Thanks anyway, i guess this doesn't really count as a legitimate question; more of a weird data setup issue.

:)
 

Similar threads

Estimating Error in Wavelength from Graphical Approach
  • · Replies 11 ·
Replies
11
Views
2K
Light photons, color and energies of molecules.
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Color Theory - What does blue + yellow make?
  • · Replies 21 ·
Replies
21
Views
3K
Undergrad Color of Light: Frequency vs Wavelength.
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Light wavelength transmission through ice
  • · Replies 2 ·
Replies
2
Views
2K
De Broglie wavelength of helium atoms
  • · Replies 2 ·
Replies
2
Views
6K
De broglie wavelength for helium and distance between atoms
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Barrier of Diffraction: Different Wavelengths, Same Color?
  • · Replies 31 ·
2
Replies
31
Views
4K
Calculating the Planck Length
  • · Replies 3 ·
Replies
3
Views
845
Light, wavelength and optical filters
  • · Replies 6 ·
Replies
6
Views
3K