1.3 What is the work function of a metal if the threshold wavelength for it is 580 nm? If light of 475 nm wavelength falls on the metal, what is its stopping potential?
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A: Here is the explianation in the given image
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Q: In hydrogen’s characteristic spectra, each series (Lyman, Balmer, etc) has a “series limit”, where…
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Q: An electron that is confined to x ≥ 0 nm has the normalized wave function x < 0 nm (x) = {(1.414…
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Q: A nitrogen atom of mass 2.32 x 10-26 kg oscillates in one dimension at a frequency of 1013 Hz. What…
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Q: The width of the central bright fringe in a diffraction pattern on a screen is identical when either…
A: Wavelength of optical light = 552 nm We need to find the speed of electrons.
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Q: A GaAs semiconductor laser has a wavelength of 850 nm. The length of the laser cavity is 800 μm.…
A: Given, The wavelength isλ=850 nm. The length of the cavity,l=800 μm.
Q: ▾ Part A Through what potential difference must an electron be accelerated from rest to have a de…
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Q: how much energy does it take to singly ionize it?
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Q: Q6: A particle is in the first excited state of an infinite square with length L, sketch p(x) and…
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Q: In Millikan's oil-drop experiment, one looks at a small oil drop held motionless between two plates.…
A: Voltage between the plates V = 2161 V.Separation between the plates d = 2 cm = 0.02 m.Density of oil…
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- Solve equation ( Fmag = evB = me v^2/r) for the speed of the electron. Write in terms of variable me, e, r, B. v = _______?__________Part A Applying the Bohr model to a triply ionized beryllium atom (Be³+, Z = 4), find the shortest wavelength of the Lyman series for Be³+. Express your answer using four significant figures. ΠΫΠΙ ΑΣΦ λ = Submit Request Answer Part B |AE| = Applying the Bohr model to a triply ionized beryllium atom (Be³+, Z = 4), find the ionization energy required to remove the final electron in Be³+. Express your answer using three significant figures. 5 ΑΣΦ Submit ? Request Answer nm ? eV·Shown here is the visible part of the spectrum of some gas. There are 11 lines. There could be 6. more, they just aren't in the wavelength range of the spectrum. The wavelength increases toward the right. :.. de f gh k (a) Which line or lines correspond(s) to the two closest spaced energy levels? Explain. (b) Which line or lines correspond(s) to the two farthest spaced energy levels? Explain. (c) What is the minimum number of energy levels in an atom of the gas that could produce the lines in this spectrum? Explain.
- The Balmer series, or Balmer lines in atomic physics, is one of a set of six named series describing the spectral line emissions of the hydrogen atom. The Balmer series is due to transitions of electrons to the energy level with n=2. Using the ideas and treatment seen in class, find the three largest wavelengths corresponding to lines of the Balmer series. Express your results in nm.The conversion between electron-volts and joules is 1 eV=1.60x10^-19 J . The work function for silver is 7.43 x 10^-19 . What is the work function for silver expressed in electron-volts?4, 3. Excited Ground state 1(ground state) state 4. 4.85E-19 J 4.42E-19 J 3.98E-19 J 3. 1. 3.03E-19 J 2. 1. 1 (ground state) Energy Energy paquosqe emitted 2) [30] Energy Levels Above is a schematic of a Hydrogen atom with its first 5 energy levels. On the right is the energy emitted from the transitions (lines pointing down on the diagram). Using the knowledge that energy and wavelength are hc, connected ( E =) you will figure out the wavelength for each of these %3D transitions. %3D E. h = Planck constant = 6.63E-34 J*s c = speed of light = 3E8 m/s 2 = wavelength in meters E = energy in Joules (J) %3D hc %3D E will be in meters! Divide by 10-9 for nm If you need help converting this to a color easier, try this website once you get the wavelength in nm: https://academo.org/demos/wavelength-to- colour-relationship/
- What is the wavelength of a photon emitted when an electron jumps from the n=3 to the n=2 energy levels of a lithium atom (Z=3)? Express your answer in nanometers and keep three significant digits.An initially stationary electron is accelerated through a voltage 93.6 eV. What is it's de Broglie wavelength, in pm?