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[DOC File]THE PHOTOELECTRIC EFFECT
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3. Reset the battery to zero, and turn on the electron energy vs. light frequency graph at the right of the screen. Play with light wavelength to generate data for the graph. Convert electron volts into joules, then calculate the slope of the line (be sure to use the exact values used in the graph).
convert ev to wavelength

[DOC File]Physics II - Magnetism
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A free electron with negligible kinetic energy is captured by a stationary proton to form an excited state of the hydrogen atom. During this process a photon of energy Ea is emitted, followed shortly by another photon of energy 10.2 electron volts. No further photons are emitted. The ionization energy of hydrogen is 13.6 electron volts.
electron volts to nm

[DOC File]READING QUIZ 1 - Physics and Astronomy
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A radio wave has a wavelength of 6 m. What is the frequency of this radio wave? c = f( so f = c/( = (3.0x108 m/s) / 6 m = 50 x 106 /s = 50 MHz What is the energy in electron volts of a photon having a wavelength of 5.00 cm? E = hc/( = 3.978x10-24 J, convert to …
ev to wavelength

[DOC File]THE PHOTOELECTRIC EFFECT
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3. Reset the battery to zero, and turn on the electron energy vs. light frequency graph at the right of the screen. Play with light wavelength to generate data for the graph. Convert electron volts into joules, then calculate the slope of the line (be sure to use the exact values used in thegraph). Explain why you obtained the value you did ...
electron volt formula

[DOC File]Islamic University of Gaza
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From these data determine (a) a value for Planck's constant, (b) the work function of sodium in electron volts, and (c) the threshold wavelength for sodium. Q. 27 (a) Using Bohr's formula, calculate the three longest wavelengths in the Balmer series.
electron volt to frequency

[DOC File]DETERMINATION OF PLANCK’S CONSTANT USING LEDS
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Calculate turn on voltage / c. Use c value in m/s. Plot turn on voltage / c versus 1/ wavelength. You will need to convert wavelength to meters before plotting. Do a least square line fit to obtain the slope. The value of the slope = h. This is obtained from E=qV=eV=h x frequency +k = hc/wavelength + k. Set e = 1 to use electron volt as energy ...
electron volts to nanometers

[DOC File]NZIP 2007: Questions & Answers - Waimea Physics
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(iii) The maximum kinetic energy of the photoelectrons emitted is 1.60 x 10(19 J. Show that the work function of the emitter is 3.85 x 10(19 J. Convert this value to electron-volts. (d) Light of wavelength 4.35 x 10(7 m is now shown on to the emitter. Calculate the cut-off voltage for this wavelength…
ev to nanometer conversion

[DOCX File]Florida State University
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The graph below shows the current -voltage curve for a typical LED. The 'turn-on' voltage V t times e (electron charge) is about the same as the energy lost by an electron as it falls from the n to the p region, and this is also approximately equal to the energy of the emitted photon..
electron volt to voltage

[DOC File]mymission.lamission.edu
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7. Using c = ( x f , calculate the frequency corresponding to each wavelength. 8. Using E = h x f , calculate the energy change in Joules for each frequency. 9. Convert the energy change values obtained in Joules (J) into Electron volts (eV). Note that 1 eV = 1.60 X 10-19 J) 10. Using the energy change values expressed in eV ((E), calculate the ...
convert ev to wavelength

[DOCX File]Reading 1: Waves and Electron Volts
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Electron Volts. In the past, we spoke briefly about electron Volts. We have only used them a handful of times. In this section, however, they will become incredibly useful. What you need to remember is that a) eV are a measure of energy. b) To convert between electron volts and joules, just multiply by e (1.6 x 10-19). This actually makes a lot ...
electron volts to nm

Convert electron volts to wavelength