When considering light moving through a diffraction grating, you should treat the light as what?
2 answers:
Answer:
Wave
Explanation:
The dual nature of light is manifested through its behavior as a particle and as a wave depending on the experimental set-up.
Here, a diffraction grating is an optical component which splits falling on it, into characteristic wavelengths. The grating equation is given as:
where n = diffraction order 1,2,3...
λ=wavelength of light
d=distance between the grooves (lines) on the grating
θ=dispersion angle
since the wavelength of light (λ, in nanometers) is comparable to the length of the medium with which the light interacts which in this case is the value of 'd'; the light is treated as a wave.
Situations where the wavelength of light is not comparable with the length scale of the interaction medium, light is treated as a particle.
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Answer:
The pressure will be 0.4 atm.
Explanation:
The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.
As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them less times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:
"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"
Boyle's law is expressed mathematically as:
P*V= k
If you initially have the gas at a volume V1 and press P1, when the conditions change to a volume V2 and pressure P2, the following is satisfied:
P1*V1= P2*V2
In this case:
- P1= 1.2 atm
- V1= 4 L
- P2= ?
- V2= 12 L
Replacing:
1.2 atm* 4 L= P2* 12 L
Solving:
P2= 0.4 atm
<u><em>The pressure will be 0.4 atm.</em></u>