Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 42, Problem 26SP
To determine
The frequency of a photon in terahertz if it has an energy of
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Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
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- A neutron of mass 1.675 × 10-27 kg has a de Broglie wavelength of 7.8x10-12 m. What is the kinetic energy (in eV) of this non-relativistic neutron? Please give your answer with two decimal places. 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s.arrow_forwardThe work function of tungsten is 4.5 eV. What is the photoelectric threshold wavelength for tungsten? What type of radiation is this? h = 4.136 x 10-15 eV.s c = 3.0 x 108 m/sarrow_forwardIf a quantum of radiation has an energy of 3.88 keV, what is its wavelength? (h = 6.63 x 10-34 J×s, 1 eV = 1.60 x 10-19 J, c = 3.00 x 108 m/s, and 1 nm = 10-9 m) Answer choices -0.32 nm -0.41 nm -1.02 nm -0.62 nmarrow_forward
- What is the wavelength of an electron of energy(a) 10 eV, (b) 100 eV, (c) 1.0 keV?arrow_forwardWhat is the wavelength of (a) a photon with energy 1.00 eV, (b) an electron with energy 1.00 eV, (c) a photon of energy 1.00 GeV, and (d) an electron with energy 1.00 GeV?arrow_forward. Find the momentum of a photon in eV/c and in kg·m/s if the wavelength is (a) 400 nm, (b) 1 Å = 0.1 nm, (c) 3 cm, and (d) 2 nm.arrow_forward
- Find the energy of (a) a photon having a frequencyof 5.00 x 1017 Hz and (b) a photon having a wavelengthof 3.00 x 102 nm. Express your answers in units of electronvolts, noting that 1 eV = 1.60 x 10-19 J.arrow_forwardHow much energy is contained in 1 mol of X-Ray photons with a wavelength of 0.135 nm?arrow_forwardIf all the energy from a 107 W light bulb is emitted on average at 666.0 nm, how many 666.0 nm photons must be emitted each second to account for all 107 W ?arrow_forward
- What is the de Brogue wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?arrow_forwardThe work function for potassium is 2.26 eV. What is the cutoff frequency when this metal is used as photoelectrode? What is the stopping potential when for the emitted electrons when this photo electrode is exposed to radiation of frequency 1200 THz?arrow_forwardShow that the energy E in eV of a photon is given by E=1.241106 m/A. where A is its wavelength in meters.arrow_forward
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