Write an article to explain the process that occurs when matter is heated, or cooled. How does matter change its physical state
1 answer:
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Answer:
.09 mm
Explanation:
In case of diffraction by single slit with width a the width of central maxima is given below
width = 2 λD/a
where λ is wavelength of light , D is distance of screen , a is width o slit
substituting the given values
14 x 10⁻³ =
a = .09 mm
b) If a is greater , width of central maxima will be less wide.
Answer:
a)
b) infrared region
Explanation:
Photon energy is the "energy carried by a single photon. This amount of energy is directly proportional to the photon's electromagnetic frequency and is inversely proportional to the wavelength. If we have higher the photon's frequency then we have higher its energy. Equivalently, with longer the photon's wavelength, we have lower energy".
Part a
Is provide that the smallest amount of energy that is needed to dissociate a molecule of a material on this case 0.42eV. We know that the energy of the photon is equal to:
Where h is the Planck's Constant. By the other hand the know that and if we solve for f we have:
If we replace the last equation into the E formula we got:
And if we solve for we got:
Using the value of the constant we have this:
Part b
If we see the figure attached, with the red arrow, the value for the wavelenght obtained from part a) is on the infrared region, since is in the order of
