Calculate the stopping potential for metal with the work function of 5.2 eV illuminated by a 150 nm source.
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Q: The work function of sodium is 2.3 eV. What is the longest wavelength that can cause photoelectric…
A: Work function of sodium ( W ) = 2.3 eV
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Q: A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is…
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Q: Calculate the energy needed for X rays to observe a crystal with a = 2Å, for electrons'energy in a…
A: Given data, Wavelength is given λ=2A0=2×10-10 m. Plank's constant h=6.6×10-34 J-s. Speed of light…
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: What is the minimum frequency in (THz) of light needed to eject electrons off a metal with a work…
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Q: he value of o is about 4.24 eV for zinc. What is the maxin na zinc cathode can have if it is to be…
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Q: What is the minimum potential difference between the filament and the target of an x-ray tube if the…
A: Given, Tube is to produce x-ray of wavelength λ=0.250 nm. Planck's constant. h=6.6×10-34 Js.…
Q: X-rays of wavelength 0.0552 nm are scattered from a crystal with a grazing angle of 11.8°. Assume m…
A: This problem can be solved using Bragg's law.
Q: Nickel has a unit cell corresponding to fcc lattice with a lattice parameter of 0.352 nm. XRD of…
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Q: Problem 3. A Fabry-Perot laser cavity is made of two identical mirrors. Each mirror has an optical…
A: Given: Optical power reflectance of each mirror R=0.999 The distance between two mirror d=10 cm=0.1…
Q: If violet light of wavelength 375 nm illuminates a metal, what voltage will completely stop the flow…
A: Solution: Write the Einstein's photoelectric equation for the maximum kinetic energy.…
Q: two metals A and B have work functions 8 eV and 12 eV respectively. Which metal has a lower cut-off…
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Q: Suppose the fractional efficiency of a metal surface with work function 1.42 eV is 1.0 x 10 14: that…
A: The work function of metal surface W = 1.42 eV Fractional efficiency f = 1.0 × 10- 14 Wavelength of…
Q: The intensity of a laser in free space is150mW / m². The corresponding amplitude of the V electric…
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Q: how much energy does it take to singly ionize it?
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Q: Electron diffractometers help us understand the structure of matter. Material is covered in an array…
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Q: Calculate the wavelength associated with an electron with energy of 1.0 eV if the electron is inside…
A: Calculate the momentum of the electron. p=2mEp=2(0.067×9.11×10−31 kg)(1.0 eV×1.6×10−19 J1…
Q: The longest wavelength in the Pfund series is 7459 nm. Find the series limit.
A: Given the longest wavelength in the Pfund series is λ=7459nm=7459×10-9m=7.459×10-6m We need to find…
Q: A particular metal has a work function of 3.2 eV. What is the maximum energy of electrons ejected…
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- A metal surface is illuminated by light with a wavelength of 350 nm. The maximum kinetic energy of the emitted electrons is found to be 1.50 eV 1 What is the longest wavelength…Show that electron pressure at T = 0 is: P = 2.N.Ef/5.V Does it makes sense to have pressure at 0 kelvin?A beam of 840 eV alpha particles (m=6.64x10-27kg) scatters from the atoms that have spacing 0.0834 nm in the surface plane of a crystal. At what angle does the m=1 intensity maximum occur?
- How many photons are produced in a laser pulse of 0.291 J at 493 nm?Your eyes have three different types of cones with maximum absorption at 437 nm, 533 nm, and 564 nm. What photon energies correspond to these wavelengths?Approximate the kinetic energy of an electron emitted from a surface with a work function of 1.5 eV that has been illuminated with a ruby red laser at 694.3 nm. 0.01 eV 0.1 eV 0.3 eV 0.5 eV 0.8 eV 1.5 eV
- 1) A laser produces light of wavelength 525 nmnm in an ultrashort pulse. What is the minimum duration of the pulse if the minimum uncertainty in the energy of the photons is 1.0%%? Express your answer with the appropriate units.X-rays of wavelength 0.0628 nm are scattered from a crystal with a grazing angle of 11.3°. Assume m = 1 for this process. Calculate the spacing between the crystal planes. d = nmThe threshold frequency of a polished metal surafce is 8.80 x1014Hz. The work function of the surface is? _eV