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[DOC File]Exam 1 (Chapters 1-4)
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1. 1.96 eV. 2. 2.62 eV. 3. 3.14 eV. 4. 5.24 eV. 27. If you stand 10 m away from a 60 W light bulb, approximately how many photons enter your eye each second while looking at the light? (Assume that the light radiates uniformly in all directions with an efficiency of 10% at the peak wavelength of 650 nm and that your pupil has a diameter of ...
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[DOC File]Physics II - Magnetism
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or c=f λ Find f if wavelength 6cm[without calculator] This equation is not part of the modern physics equation set, but is needed to solve the problems. Using it, one can relate frequency and wavelength. For many of the problems you will be tasked to solve, you will be given wavelength …
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[DOC File]Physics
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K = Ephoton - = 2.48 eV – 2.28 eV = 0.20 eV c. What is the threshold wavelength for photoemission from the surface of sodium? = 1240 eV•nm/ nm = 1240 eV•nm/2.28 nm = 544 nm d What is the kinetic energy of the photoelectrons when 600 nm light shines on the sodium surface? 0 eV…
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Chemistry Worksheet – Wavelength, frequency, & energy of ...
1 eV = 1.602 x 10-19 J. 1. What is the wavelength of a wave having a frequency of 3.76 x 1014 s-1? 2. What is the frequency of a 6.9 x 10-13 m wave? 3. What is the wavelength of a 2.99 Hz wave? 4. What is the wavelength of a 1.28 x 1017 Hz wave? 5. What is the frequency of a 7.43 x 10-5 m wave? 6. What is the frequency of a 2,600 cm wave? 7.
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Measuring Planck’s Constant Using the Photoelectric Effect
Work functions must be entered in eV. Record the work function you entered. You will not change this value for the rest of the experiment. 3. Set the photon wavelength. Select “Set Wavelength” off the Setup Menu. The wavelength must be entered in nm. Start with a value of 400 nm (a violet photon). Return to the main menu. 4. Start the ...
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[DOC File]Chapter 2
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Calculate the wavelength of an electron which has a kinetic energy of 4 eV. What should be the energy of an electron so that the associated . electron waves have a wavelength of 600 nm? 3. Since the visible region spans between approximately 400 nm and . 700 nm, why can the electron wave mentioned in Problem 2 not . be seen by the human eye?
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[DOCX File]Calculate the energy of a photon of wavelength 3.0 × 10-7 m.
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Calculate the de Broglie wavelength of an electron moving at 3.0 × 106 ms-1 (Planck’s constant = 6.63 × 10-34 Js, mass of electron = 9.1 × 10-31 kg). Chapter 3: Standard Form You will already be familiar with Standard Form from GCSE Maths.
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Ev to wavelength calculator