sing the average speed of a gas, (8?????)1/2, determine the average de Broglie wavelength for an He atom at 25 °C and at 500 °C.How fast would the He atom need to travel in order to have the same linear momentum as a 500 nm photon?

Q: A ground-state H-atom (n = 1) first absorbs a photon with a wavelength of 95.0 nm and then emits a…

A: Initially n=1 Wavelengths for energy absorbed= 95nm Wavelength for energy emit = 434

Q: In a photoelectric experiment it is found that a stopping potential of 1.00 V is needed to stop all…

A:

Q: The work function for indium is 4.12 eV. (d) If light of energy 7.14 eV is incident on indium, what…

A: Photoelectric effect is the phenomenon of emission of electrons from metals under the influence of…

Q: The photoelectric work function for a metal is 4.2 eV. If the stopping potential is 3V. Find the…

A: To find-λ0=?(K.E.)max=?Given-ϕ0=4.2 eV=4.2×1.6×10-19 JVs=3 Vc=3×108 m/sh=6.63×10-34 Jse=1.6×10-19 C

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: lectron with an initial total energy of E=3.757 eV (in a region with zero potential) is incident on…

A: Given: The initial total energy of the electron is 3.757 eV.            The potential is 1.952 eV.…

Q: We have a electron moving with a speed of 3.00 * 10^6 m/s. What is the speed of a proton that has…

A: The speed of electron is given as, ve = 3×106 m/s TO DETERMINE: The speed of proton having same…

Q: On average, people in Adelaide have a mass of m = 85.5 kg and walk at a speed of v = 2.12 ms1, If we…

A: Given,

Q: ▼ In a photoelectric-effect experiment, the stopping potential is 1.37 V if the light used to…

A:

Q: Consider photons at temperature T= 300K in a cubic box of volume 1 m' with periodic boundary…

A: Given:          T=300K          V=1 m3          To find:    a) Total number of photon and energy of…

Q: The Bohr model of the single-electron, many-proton ion predicts the emitted/absorbed photon…

A: Solution:

Q: An apparent limit on the temperature achievable by laser cooling is reached when an atom's recoil…

A: wavelength = 780 nm

Q: 3. Using the average speed of a gas, (8RT?MW)1/2, determine the average de Broglie wavelength for an…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: In a He-Ne gas laser an electrical discharge pumps helium atoms to a 20.61 eV excited state. This…

A: The initial KE of neon is 20.66 eV. The final KE of neon is 18.70 eV. The energy lost is then…

Q: Light with a frequency of 2.89×10152.89×1015 Hz ejects electrons from the surface of aluminum, which…

A: The expression for the de-Broglie wavelength,

Q: When a metal was exposed to photons at a frequency of 1.25 × 10¹5 s¯¹, electrons were emitted with a…

A: Given Data: The frequency of each photon is .The maximum kinetic energy of the emitted electron is…

Q: You illuminate a pure sodium metal with a lamp with a given wavelength, 400.0nm. You measure the…

A:

Q: A simple cubic crystal is cut so that the rows of atoms on its surface are separated by a distance…

A: Given: Distance,d=0.352nm=0.352×10-9mPotential Difference,V=175V A diffraction grating is a periodic…

Q: An electron is in a box of width 3.0 * 10-10 m. What are the de Broglie wavelength and the magnitude…

A: Given: The width of the box L = 3×10-10 m. The level for which momentum and de Broglie wavelength…

Q: Monochromatic light from a laser shines onto a gold surface and produces photoelectrons with maximum…

A: Given data:

Q: 2. P2.4 Given a lum cubic cavity, with a medium refractive index n=1, a) show that the two lowest…

A: Given: L=1μm, μ=1 2.) The frequencies that exist in the cubic cavity are defined by : fn=nc2μLHere,…

Q: What should be the temperature (in Kelvin) of an ideal blackbody so that the photons of its light…

A:

Q: The two spherical bodies A (radius 6 cm) and B (radius 18 cm) are at temperatures T1 and T2,…

A:

Q: Using the average speed of a gas, (8RT/piMW)^1/2 determine the average de Broglie wavelength for an…

A: a)average speed = 8RTπMat t = 25 C  = 298 K v = 8*8.314*298π* 0.004v = 1255.9 m/s Therefore, de…

Q: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…

A: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…

Q: 1.2. When a photoelectric cell with a copper cathode is illuminated by a Hg arc lamp, with…

A:

Q: Compute the de Broglie wavelengt (a) A 1000-kg automobile traveling 200 mi/h). (b) A 10-g bullet tra…

A: “Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: What speed would an electron need in order to match the de Broglie wavelength of a proton whose…

A: The wavelength is inversely proportional to mass and speed. The unit of wavelength is meter(m).…

Q: An electron moving around single proton in an orbit charactarized by n = 4. How many of the…

A: Given:-  n= 4

Q: Light of wavelength 416 nm incident on a metal surface with work function 2.36 eV leads to the…

A: To determine the maximum speed of the ejected electrons, we can use the equation for the kinetic…

Q: The diameter of a Hydrogen atom is about 10.6 nm. What is the minimum uncertainty in momentum of an…

A:

Q: Which of the following statements are true? Choose all that apply. A photon has kinetic energy.

A:

Q: A Ge pin photodiode has a radius of 0.2 mm for an active light receiving circular area. Light that…

A: The quantum efficiency of the photodiode is given by,

Q: An electron is trapped in a one-dimensional box that is 326 nm wide. Initially, it is in the n = 2…

A:

Q: What is the energy in eV and wavelength in μm of a photon that, when absorbed by a hydrogen atom,…

A:

Q: An atom initially in an energy level with -2.59 eV emits a photon that has wavelength 480 nm. What…

A: