0
This is a fascinating question ! It makes you stop and try to
figure out what "ordinary" light might be.
ALL light is emitted by atoms.
That statement might possibly need some refinement for the case
where light and a bunch of other stuff comes pouring out of the core
of a star, or from the fireball of a nuclear weapon. But any light that
you and I have ever seen in the course of our daily lives has been
emitted by atoms.
Light emitted by atoms is characterized by discrete wavelengths, known as spectral lines, that correspond to specific electron transitions within the atom. In contrast, ordinary light consists of a continuous range of wavelengths, producing a continuous spectrum. This difference is due to the quantized energy levels of electrons within atoms, leading to the emission of light at specific frequencies.
The question is stunning! Where do you imagine all the light you see
every day comes from ? It's all emitted from atoms.
We know how to produce radio waves by running current through wires,
up a cable, and out of an antenna, directly creating E & M fields that ripple
and wiggle out over vast distances. But no waves any shorter than those.
All the other electromagnetic radiation around us is the result of subatomic
particles ... mostly electrons ... hopping, skipping, jumping, and spinning
between the various energy levels in their respective atoms.
I'd be curious to know what you imagine to be 'ordinary' sources of light.
Add your answer:
Earn +20 pts
Why light emitted by bulb is not monochromatic?
Light emitted by a bulb is not monochromatic because it contains a range of frequencies and wavelengths. Bulbs generate light through thermal radiation, where the atoms in the filament vibrate at different energies, leading to a broad spectrum of emitted light. This results in a mix of colors and wavelengths in the light emitted by the bulb.
The atoms that make up a star can be determined by?
Spectroscopic analysis of the light emitted by the star.
Is UV light emitted from all lasers?
No, most lasers emit light at a different frequency than UV.
What does the intensity of an emission line depend on?
The intensity of an emission line depends on the number of atoms or ions in the excited state, the probability of emission from that state, and the path length through which the emitted light passes.
Why is an atom not really in invisible?
Atoms are not invisible because they can interact with light, which allows us to see them using tools like microscopes. Light can be absorbed, emitted, or scattered by atoms, providing us with information about their presence and behavior.
One indicator that electrons in atoms are limited to specific energy levels is that?
light emitted from excited atoms occurs only at specific wavelengths
Why do you think are there different color emitted?
There different colors emitted
Why ordinary light is not coherent?
Ordinary light is emitted from various sources with different phases and wavelengths, leading to random and constantly changing interference patterns. This lack of a fixed phase relationship between light waves prevents ordinary light from being coherent. Coherent light sources, like lasers, have a single wavelength and phase, allowing for stable interference patterns.
Why light emitted by bulb is not monochromatic?
Light emitted by a bulb is not monochromatic because it contains a range of frequencies and wavelengths. Bulbs generate light through thermal radiation, where the atoms in the filament vibrate at different energies, leading to a broad spectrum of emitted light. This results in a mix of colors and wavelengths in the light emitted by the bulb.
The atoms that make up a star can be determined by?
Spectroscopic analysis of the light emitted by the star.
What are the different forms of emitted light called?
fluorescence
Can atoms be seen with an ordinary light microscope?
No, atoms cannot be seen with an ordinary light microscope. Atoms are much smaller than the wavelength of visible light, so they cannot be resolved using traditional optical microscopes. Specialized equipment such as scanning tunneling microscopes or atomic force microscopes are needed to visualize atoms.
Why two independent sources cannot behave as a coherent sources?
Light is emitted due to the de-excitaton of electrons from higher orbits of the various atoms of the light source.The de-excitation can also be to different levels in different atoms resulting in emission of different wavelengths.A light source will have numerous atoms in it.When you take two light sources it is not possible for all the atoms to get de-excited to the same shell at the same time(causing phase difference) that is why two independent sources cannot be coherent.
Why do you think are there colors emitted?
There different colors emitted
What was The quantum theory of energy levels within atoms was aided by?
The quantum theory of energy levels within atoms was aided by the emission spectrum. When excited with light, different elements emitted photons of different frequencies. The frequencies were different because the energy difference from excited to low energy state was different depending on the element.
How is ultraviolet light different from ordinary light?
It is not visible by the naked eye.
How is light water light different than heavy water?
Heavy water is heavier than light water because instead of both hydrogen atoms in the molecule being ordinary light hydrogen (H - one proton) one or both hydrogen atoms are heavy hydrogen (D - one proton, one neutron).
