Why are spectrums of incandescent light bulbs continuous despite …
2021年2月17日 · Incandescent bulbs emit light by heating a filament using electricity, this would lead to a continuous spectrum according to Kirchoff's first law. However, the glass casing around the filament is filled with Argon (or other inert gases), its presence should make the spectrum discontinuous due to the absorption of wavelengths corresponding to ...
What is a singular continuous spectrum? - Physics Stack Exchange
Note that the residual spectrum of any self-adjoint operator is empty, but e.g. Wiki explicitly puts the discussion of absolutely vs. singularly continuous in the section on self-adjoint operators, which would be pretty pointless if the singularly continuous spectrum was always empty in that case. $\endgroup$
Why is sunlight spectrum continuous? - Physics Stack Exchange
This ion forms by the attachment of a free electron (with a continuous spectrum of energies) to a hydrogen atom, emitting a continuous spectrum of photons in the process. The reverse process, photo-detachment, occurs at the same rate and is the principal source of continuum opacity in the solar photosphere.
quantum mechanics - Quantization vs. continuous energy levels
2015年7月9日 · Instead of a continuous emission spectrum hydrogen gives these distinct lines. All atoms give spectra that characterize them. Thus quantization at the atomic and particle level is an experimental fact. First physicists tried to explain the spectrum of hydrogen with a planetary type model, the Borh model, using classical electrodynamics. The ...
mathematical physics - Continuous spectrum (quantum mechanics ...
So we have $$\langle \ell+\epsilon| \ell \rangle = 0$$ However, if we assume that the eigenstates are normalizable, then $$\langle \ell| \ell\rangle =1$$ but this means that the inner product $\langle \ell+\epsilon| \ell \rangle = 0$ is a discontinuous function (jumping between zero and one) of the bra's eigenvalue $\ell+\epsilon$ which ...
What causes a black-body radiation curve to be continuous?
The ideal black-body radiation curve (unlike the quantized emission seen from atomic spectra), is continuous over all frequencies. Many objects approximate ideal blackbodies and have radiation curves very similar in shape and continuity to that of an ideal black-body (often minus some emission and absorption lines from the atoms in an object ...
Why solids can produce a continuous light spectrum?
Energy levels in solids overlap, so all energy changes for the electrons are allowed. This means the electrons can emit photons with any energy, producing a continious spectrum when a solid is heated' This paragraph tries to explain why there is a continuous and not a discreet spectrum in the light from a light bulb.
mathematical physics - What are absolutely continuous spectrum …
It is a distinction corresponding to different types of spectral measures. The absolutely continuous spectrum corresponds to absolutely continuous measures, singular spectrum to continuous singular measures (both with respect to Lebesgue measure). Refer e.g. to Reed-Simon Chapter VII for a more detailed description.
quantum mechanics - Discrete Spectrum vs Continuous Spectrum …
2022年5月17日 · I am currently reading up on quantum mechanics and seem to have confused myself when trying to understand the difference between a discrete spectrum and continuous spectrum. I understand the basic starting example- points on a line lying at integer values with spacing $\epsilon$ vs when $\epsilon \to 0$ .
Why is the spectrum of the $\\beta$-decay continuous?
the spectrum of the Gamma and Alpha decays are both discrete, i.e. the $\alpha$-particles and the $\gamma$-rays take on only discrete values when emitted from a decaying nucleus. Why is it then, that the $\beta^{\pm}$ can take on continuous values?