0
Patrica Anex
She's a really good scientist.
What else can I help you with?
How did they figure out how fast light traveled?
One of the earliest measurements was made by observing the orbits of the moons of Jupiter.
What do atoms have to do with lasers?
Except in free electron LASERS they have every thing to do with generating LASER light. A lamp is used to excite the valence electrons of the mediums atoms to higher orbits. When a population inversion occurs the light coming out of the medium is of the same frequency and stays in a beam not diverging as incoherent light would. Atoms, of course, have to do with everything, since everything is made of atoms.
Why some compound have distinct colour and other have not?
Compounds can have distinct colors due to the arrangement of their atoms and the interaction of light with their chemical structure. Some compounds have specific electronic configurations that allow them to absorb and reflect certain wavelengths of light, resulting in unique colors. In contrast, other compounds may not exhibit distinct colors because their chemical structures do not interact with light in a way that produces color.
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.
What are the characteristics of the nitrogen emission spectrum?
The nitrogen emission spectrum is characterized by a series of distinct lines of light that are emitted when nitrogen atoms are excited. These lines are specific to the energy levels of nitrogen atoms and can be used to identify the presence of nitrogen in a sample.
What evidence indicates that electrons move around the nucleus in definite pathways?
the evidence is that when you look through microscopes you can see the different atoms and see the parts of them
What an object that orbits a sun but does not make its own light?
Pluto (if you still consider it as a planet),
How many wavelengths are present in a mercury light?
A mercury light typically emits multiple wavelengths of light. It produces a line spectrum with several distinct wavelengths corresponding to the transitions of electrons within the mercury atoms. Typically, a mercury light will contain several prominent wavelengths in the ultraviolet and visible light ranges.
Object which orbits earth and reflects light of the sun?
It is our Moon.
Why are atomic absorption lines very narrow?
Atomic absorption lines are very narrow because they result from the absorption of light by individual atoms at specific energy levels. This absorption occurs at precise wavelengths corresponding to the energy differences between the atom's electron orbits. The narrowness of the lines is due to the limited number of possible energy transitions within an atom, resulting in distinct and well-defined absorption peaks.
Which of these is most likely to be dictionary definition of sun?
"The star around which the Earth orbits, which provides light and heat to the planet."
Why does the moon appear to change shape as it orbits the earth?
Because the light from the sun reflects of the moon so when the moon orbits the sun which means you can only see the part of the moon that has light reflecting off it
