Q2. the ruby laser has two states at 300 and 500 K if emits light of 7000A° , then population.

Q: 1) An electron, m= 9.109 x 10-31 kg, is moving in a two dimensional box. The frequency of the n =1…

A: Given:-When a hydrogen atom undergoes a transition from n=3 to n=2 level, a photon of λ=656.5 nm is…

Q: What is one characteristic of a light beam producedby a monochromatic laser?1. It consists of…

A: Characteristics of a laser light are: Coherent Monochromatic Directionality

Q: Problem 4:   Ruby lasers have chromium atoms doped in an aluminum oxide crystal. The energy level…

A: Given data :  Ground state energy E0 = 0 eV  1st excited state energy E1 = 1.79 eV 2nd excited state…

Q: 15. How many photons are emitted by a 5.00 mW laser in 10.0 s if the photons have a wavelength of…

A:

Q: a. Calculate the wavelength of light, in nanometers, emitted when a hydrogen atom relaxes from n = 7…

A:

Q: 24. I FIGURE EX38.24 is an energy-level diagram for a simple atom. What wavelengths, in nm, appear…

A: Given that   for n=3 E3=4.00 eV⇒E3 =4.00×1.6×10-19 J for n=2E2=1.50 eV⇒E2=1.50×1.6×10-19 J for…

Q: 2. Calculate the 20 values in the X-ray diffraction spectrum for the following crystallographic…

A:

Q: Green HeNe lasers are available and they emit light at 543.5 nm. What is the A / B value at this…

A: Given: Wavelength of Green HeNe laser is 543.5nm, λ=543.5×10-9m To Find: Relation between einstein…

Q: 3. Diatomic line. Consider a line of atoms ABAB.....AB, with A-B bond length of a/2. The form…

A:

Q: Q: The line width of a helium-neon laser is 10° Hz. The operating wavelength is 632.8 mm and the…

A:

Q: A beam of protons that all have the same energy scatters from atoms that have a spacing of 0.150 nm…

A:

Q: A beam of 150 eV electrons are directed at normal incidence onto a crystal surface. The m = 2…

A: According to the Bragg's law, 2d×sinθ = mλ where, d = spacing of the crystal layers θ = incident…

Q: A photon has energy of 6.60 eV. To what wavelength does this energy correspond? a. 100 nm b. 118 nm…

A: Energy, E = 6.60 eV = 6.60×1.6×10-19 J = 1.056×10-18 JWavelength, λ = ?

Q: The work function of unknown metal surface is = 7.54 eV, find the minimum wavelength that light must…

A:

Q: Barium has a work function of 2.48 eV. 1. a) What is the maximum kinetic energy of electrons if the…

A: (a) (given)   Work function ϕ Barium = 2.48 eV Wavelength λ of UV light = 365 nm…

Q: 6. A surface has a work function of 1.70 eV and has light on wavelength of 400 nm shone  on it. What…

A: Given thatW=1.70 evwavelength =440 nmTo determine that What is the maximum speed of the electrons…

Q: 3. Generate the plot of spectral energy density vs frequency and spectral energy density vs…

A: Accroding to Rayleigh jeans formula, the spectral energy density is given by Uν=8πν2c3kT or…

Q: The effective bandwidth of Hollow cathode lamp emission lines is smaller than that absorption lines…

A: Option

Q: Q3: The below table lists diffraction angles for the first three peaks (third -order) of the x-ray…

A:

Q: A metal has a work function φ = 3.68eV. What is the maximum wavelength with which the photoelectric…

A: In the photo electric experiment it was observed that a photon with sufficient energy could be able…

Q: When illuminating a metal work function W = 1.6 eV with a radiation of wavelength 700 nm., we…

A: We have a metal with work function W=1.6 eV which is illuminated with a radiation of wavelength…

Q: Light with a wavelength of 270 nm is incident on a metal surface and ejects electrons with a maximum…

A: Given:  incident wavelength = 270 nm  KEmax = 1.2 eV

Q: 1. See example 4.2 on page 112. For silicon at 300 K, calculate the clectron concentratión,…

A: Given: T=300K a. EC-EF = 0.25 eVb. EC - EF = 0.35 eVc. EC- EF=0.45 eV

Q: Magnesium has a work function of 3.7 eV. A.) What is the longest wavelength of light that will…

A:

Q: A laser with a power of 1.0 mW has a beam radius of 1.0 mm. What is the peak value of  the electric…

A: