Spectrum and nuclear motion

The wavelength of emission line spectrum and absorption line spectrum of a substance are related as

[A] : The nuclear membrane forms envelope like structure called nuclear envelope around nuclear contents . [R] : The nuclear envelopes separate the nuceloplasm from protoplasm .

Which part of electromagnetic spectrum is produced in nuclear reactions?

Idea OF Spectrum || Types OF Spectrum (Emission, Absorption, Continuous, Discontinuous) || Hydrogen Spectrum || Rydberg Equation || Lyman Series

Nuclear Fission:-Atomic Bomb || Nuclear Reactor || Nuclear Fusion

The nuclear energy from an atom is liberated by nuclear fission and nuclear fusion.

What is electromagnetic spectrum? Name the important part of the electromagnetic spectrum.