College Physics: Explore And Apply, Volume 2 (2nd Edition)
2nd Edition
ISBN: 9780134862910
Author: Eugenia Etkina, Gorazd Planinsic, Alan Van Heuvelen, Gorzad Planinsic
Publisher: PEARSON
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Chapter 28, Problem 56P
To determine
The experimental evidence in support of the uncertainty principle.
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64. Protons can be accelerated to speeds near that of light in particle accelerators. Estimate the wavelength (in nm) of such a proton moving at 2.84×108 m/s(mass of a proton = 1.673×10−27 kg). Enter your answer in scientific notation.
Could you please give reasons for your choice of answers.
In which problem is the uncertainty principle coming handy? Mark more than one answer if necessary.
A. To find out that the nuclear force is spin dependent.
B. To find out how dark energy is made of.
C. To solve Borh's hydrogen atom.
D. To solve the range of the nuclear force.
E. To solve the eigenvalues of the harmonic oscillator using the Schrodinger equation.
multiple choice question
What will be the energy associated with a blue photon (in Joules), if the frequency of the blue light is 650 THz (Terahertz (THz); 1 Tera = 10¹2)? [Hint: Use Planck's
equation: E = hf to calculate the photon energy!]
A
650x1012 J
B.
6.5×10⁹ J
C.
4.3x1015 J
D.
4.3x10-1⁹ J
E.
Jump to 1 2 3 4 5 6 7 8 9 10
4.3x101⁹ J
Chapter 28 Solutions
College Physics: Explore And Apply, Volume 2 (2nd Edition)
Ch. 28 - Prob. 1RQCh. 28 - Prob. 2RQCh. 28 - Prob. 3RQCh. 28 - Prob. 4RQCh. 28 - Prob. 5RQCh. 28 - Prob. 6RQCh. 28 - Prob. 7RQCh. 28 - Prob. 8RQCh. 28 - Prob. 1MCQCh. 28 - Prob. 2MCQ
Ch. 28 - Prob. 3MCQCh. 28 - Prob. 4MCQCh. 28 - Prob. 5MCQCh. 28 - Prob. 6MCQCh. 28 - Prob. 7MCQCh. 28 - Prob. 8MCQCh. 28 - Prob. 9MCQCh. 28 - Prob. 10MCQCh. 28 - Prob. 11MCQCh. 28 - Prob. 12MCQCh. 28 - Prob. 13CQCh. 28 - Prob. 14CQCh. 28 - Prob. 15CQCh. 28 - Prob. 16CQCh. 28 - Prob. 17CQCh. 28 - Prob. 18CQCh. 28 - Prob. 19CQCh. 28 - Prob. 20CQCh. 28 - Prob. 21CQCh. 28 - Prob. 22CQCh. 28 - Prob. 23CQCh. 28 - Prob. 24CQCh. 28 - Prob. 25CQCh. 28 - Prob. 26CQCh. 28 - Prob. 27CQCh. 28 - Prob. 28CQCh. 28 - Prob. 29CQCh. 28 - Prob. 30CQCh. 28 - Prob. 31CQCh. 28 - Prob. 32CQCh. 28 - Prob. 33CQCh. 28 - Prob. 34CQCh. 28 - Prob. 1PCh. 28 - Prob. 2PCh. 28 - Prob. 3PCh. 28 - Prob. 4PCh. 28 - Prob. 5PCh. 28 - Prob. 6PCh. 28 - Prob. 7PCh. 28 - Prob. 8PCh. 28 - Prob. 9PCh. 28 - Prob. 10PCh. 28 - Prob. 11PCh. 28 - Prob. 12PCh. 28 - Prob. 13PCh. 28 - Prob. 14PCh. 28 - Prob. 15PCh. 28 - Prob. 16PCh. 28 - Prob. 17PCh. 28 - Prob. 18PCh. 28 - Prob. 19PCh. 28 - Prob. 20PCh. 28 - Prob. 21PCh. 28 - Prob. 22PCh. 28 - 28.4 Lasers (a) A laser pulse emits 2.0 J of...Ch. 28 - Prob. 24PCh. 28 - Prob. 25PCh. 28 - Prob. 26PCh. 28 - Prob. 27PCh. 28 - Prob. 28PCh. 28 - Prob. 29PCh. 28 - Prob. 30PCh. 28 - Prob. 31PCh. 28 - Prob. 32PCh. 28 - Prob. 33PCh. 28 - Prob. 34PCh. 28 - Prob. 35PCh. 28 - Prob. 36PCh. 28 - Prob. 37PCh. 28 - Prob. 38PCh. 28 - Prob. 39PCh. 28 - Prob. 40PCh. 28 - Prob. 41PCh. 28 - Prob. 42PCh. 28 - Prob. 43PCh. 28 - Prob. 44PCh. 28 - Prob. 45PCh. 28 - Prob. 46PCh. 28 - Prob. 47PCh. 28 - Prob. 48PCh. 28 - Prob. 49PCh. 28 - Prob. 50PCh. 28 - Prob. 51PCh. 28 - Prob. 52PCh. 28 - Prob. 53PCh. 28 - Prob. 54PCh. 28 - Prob. 55PCh. 28 - Prob. 56PCh. 28 - Prob. 57PCh. 28 - Prob. 58PCh. 28 - Prob. 59GPCh. 28 - Prob. 60GPCh. 28 - Prob. 61GPCh. 28 - Prob. 62GPCh. 28 - Prob. 63GPCh. 28 - Prob. 64GPCh. 28 - Prob. 65GPCh. 28 - Prob. 66GPCh. 28 - Prob. 67GPCh. 28 - Prob. 68RPPCh. 28 - Prob. 69RPPCh. 28 - Prob. 70RPPCh. 28 - Prob. 71RPPCh. 28 - Prob. 72RPPCh. 28 - Prob. 73RPPCh. 28 - Prob. 74RPPCh. 28 - Prob. 75RPPCh. 28 - Prob. 76RPPCh. 28 - Prob. 77RPPCh. 28 - Prob. 78RPP
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- A hydrogen atom in an excited state can be ionized with less energy than when it is in its ground state. What is n for a hydrogen atom if 0.850 eV of energy can ionize it?arrow_forward1. If the energy density of the cosmic background of a parallel universe is 4.73 x 10^-13 J/m³, according to Planck's Law, what is the temperature of that universe? 625°C 625 K 5.0 K 1.5 x10¹¹ K None of the above 2. Which statement is true regarding Bohr model of the atom? It assumes stable electronic orbits whose radii and energies are quantized. It perfectly explains the emission lines in the hydrogen spectrum. An orbiting electron will gradually lose energy and should eventually spiral down to the nucleus leading to the collapse of the atom. But this expected consequence is not happening. The model model does not explain this fact. 1 and 2 2 and 3 1 and 3 2 only All are true.arrow_forward1.What is the wavelength of an hydrogen atom moving with a mean velocity corresponding to the average kinetic energy of hydrogen atoms under thermal equilibrium at 293K? 2.The speed of an electron is measured to be 1 km/s with an accuracy of 0.005%. Estimate the uncertainty in the position of the particle 3.Determine the maximum wavelength shift in the Compton scattering of photons from protons 4.Calculate the de Broglie wavelength of electrons and protons if their kinetic energies are i) 1% and ii) 5% of their rest mass energies.arrow_forward
- multiple choice question What will be the energy associated with a blue photon (in electronvolts, eV), if the frequency of the blue light is 650 THz (Terahertz (THz); 1 Tera = 10¹2)? [Hint: Use Planck's equation: E = hf to calculate the photon energy!] A 6.5 eV B. 6.5×10-³ eV C. 2.7 eV D. 2.7×10-27 ev E. Jump to 12 3 4 5 6 7 8 9 10 2.7x1027 evarrow_forwardHydrogen atom in the first excited state.The first excited state E2 of the hydrogen atom is 10.2eV above the ground state E1, what is the ratio of the number of atoms in the first excited state to the number in the ground state at (a) T= 300K (b)= 5800Karrow_forwardQUESTION 10 What is the the energy (in kj/mol of photons) of gamma ray radiation that has a frequency of 7.339e+19 Hz? The speed of light is 3.00x10 m/s and Planck's constant is 6.626x10 34 J*s. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save LIC AvAMUthima 774 508 29 tv MacBook Pro 2$ % 3 4 5 6 8arrow_forward
- 1. The energy states of the hydrogen are displayed below. Calculate the probability, using Boltzmann statistics, that the hydrogen atom is in its1st excited state at:arrow_forwardDirections: Briefly describe the illustrations by citing scientific explanation based on the wave particle duality theory. 1.arrow_forwardThe name dark energy refers to the fact that a. it adds a negative term to the total energy of the Universe. b. it pervades the entire of the Universe, which is itself dark. c. it is concentrated in galaxies and galaxy clusters, but it is invisible. d. it is not detectable by any sort of light or other electromagnetic radiation. e. scientists are not sure what it is, so they use the term dark energy as a way to emphasize their ignorance.arrow_forward
- 1. We see light from a distant galaxy, galaxy “A”, with a redshift of z = 0.017. What wavelengths would we observe from the Hydrogen atom transitions from n = 5 to n = 2, from n = 4 to n = 2, and from n = 3 to n = 2? 2. Building on the previous problem, imagine there is a galaxy “B” that is in the same direction as galaxy "A", but "B" is at a redshift of z = 0.034 as seen from our Galaxy. What if the astronomers in galaxy “B” were observing galaxy “A”.... What wavelengths would they observe for these same Hydrogen transitions in galaxy “A”? (Hint: You should not have to do any calculations to answer this question, but please explain your answer carefully.)arrow_forwardT91. Lyman alpha. Hydrogen atoms throughout the universe emit ultraviolet light with wavelength 121.6 nm. If we see this Lyman alpha radiation from a galaxy as visible light with wavelength 650 nm, then how fast are we moving away from the galaxy? (Ignore the curvature of spacetime.) (The speed as a fraction of c = )arrow_forwardAnswer questions 1 and 2: 1. Show the degeneration of each energy level of the hydrogen atom and discuss the degeneracy and difference for light multi-electron atoms. 2. Explain the meaning of the Bohr radius according to Schrödinger's quantum mechanics.arrow_forward
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