Question

If the wavelengths or light absorbed by hydrogen and helium are shifted toward the red end of the

spectrum, are those wavelengths becoming shorter or longer? Explain

Answer 1

Wavelengths towards the red end of the spectrum has a longer wavelength

Step-by-step explanation:

As seen by this diagram, we can tell that red has the longest wavelength than any other colour. Red has a lower frequency and so carries less energy.

Hope this helps!