Answer :
Absorption spectra: These spectra appear when an electron transitions from one energy level to another. Energy is absorbed during this process.
Emission Spectra: When an electron goes from a higher energy level to a lower energy level, it produces an emission spectrum. Photons are released as energy during this process.
For n = 2 to n = 4
The energy will be absorbed as the electron is jumped from a lower energy level (n = 2) to a higher energy level (n = 4).
To know more about electron transition refer to https://brainly.com/question/14649237
#SPJ4