Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 43, Problem 20SP
To determine
The wavelength of the emitted photon when the hydrogen atom drops from the first excited state to the ground state.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The two nuclei in the carbon monoxide (CO) molecules are 0.1128 nm apart. The mass of the carbon atom is 1.993x10-26 kg. The mass of the oxygen atom is 2.656x10-26 kg.What is the wavelength of the photon emitted in the transition from first excited state to the ground state? (Give your answer in mm.) [answer is not 1.291]
Unexcited hydrogen atoms are bombarded with electrons that have been accelerated through
12.5 V.
What is the highest energy level that the hydrogen atoms will be excited to?
When the electron of the hydrogen atom is excited into the level in part a), what
wavelength(s) is (are) possible for the photon emitted when the electron drops to a lower
energy level? [Answer in 3 significant figures]
a)
b)
[06/04, 2:13 PM] +91 93814 04108: The minimum amount of energy required to energize a particle from its ground state to first excited state is 1*10^4 eV. One photon source P1 corresponding to X ray wavelength 1nm and another photon source p2 corresponding to visible light wavelength 500 nm are available. As a physicist, which one of these photons would you choose for energizing the atom?
[06/04, 2:14 PM] +91 93814 04108: Draw a neat diagram to show the procedure and show your calculations in detail.
Chapter 43 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A hydrogen atom is excited from its ground state to the n4 state. The atom subsequently emits three photons, one of which has a wavelength of 657 mm What are the wavelengths of the other two photons? Express your answers in nanometers. Enter your answers in ascending order separated by comma. [5] ΑΣΦΑ 1873,122 Submit Previous Answers Request Answer Provide Feedback X Incorrect: Try Again: 19 attempts remaining → 99+ a neverw ? SURMIEY amarrow_forward(v):A hydrogen atom makes a transition from a bound state (Energy of the bound state = 0.11 eV) to a state with excitation energy (= 10.2 eV). Calculate the energy of the photon emitted.arrow_forwardCalculate the wavelength of the photon emitted when a particle of mass 1.0 x 10-27 g, in a potential box of length 6.0 Å, goes from the = 5 to the = 4 level. [5]arrow_forward
- It requires 3.69 x 10-19 J of energy to eject an electron from potassium metal. Calculate the minimum frequency of light necessary to do this [E=hv]. Write the units of frequency.arrow_forward(2.13) Selection rules in hydrogen Hydrogen atoms are excited (by a pulse of laser light that drives a multi-photon process) to a spe- cific configuration and the subsequent spontaneous emission is resolved using a spectrograph. Infra- red and visible spectral lines are detected only at the wavelengths 4.05 um, 1.87 µm and 0.656 µm. Explain these observations and give the values of n and l for the configurations involved in these transitions.arrow_forwardA hydrogen atom is in its ground state (n, = 1) when a photon impinges upon it. The atom absorbs the photon, which has precisely the energy required to raise the atom to the n, = 3 state. (a) What was the photon's energy (in eV)? 12.089 ev (b) Later, the atom returns to the ground state, emitting one or more photons in the process. Which of the following energies describes photons that might be emitted thus? (Select all that apply.) O 13.6 ev O 1.89 eV V 12.1 eV O 10.2 ev There are two ways a hydrogen atom in the n, = 3 state can end up in the ground state. In the first, all of the energy goes into one photon and the electron moves directly into the ground state. (What would be the energy of that photon?) In the other, the electron "descends" in two stages, each accompanied by the emission of a photon. (What would be the energies of those two photons?)arrow_forward
- 3. Starting from a thermal energy of phonon in the integral form 3π nD U = - ³7 for ( - II) n² dn hwn [exp(ħwn/t) − 1]) 2 where Debye number n = (6N/π)¹/³, find out the high temperature limit of the thermal energy (= 3NT) and heat capacity (= 3N) of phonon. Iarrow_forwardThe light observed that is emitted by a hydrogen atom is explained by a simple model of its structure with one proton in its nucleus and an electron bound to it, but only with internal energies of the atom satisfying EH=−RH/n2EH=−RH/n2 where RHRH is the Rydberg constant and nn is an integer such as 1, 2, 3 ... and so on. When a hydrogen atom in an excited state emits light, the photon carries away energy and the atom goes into a lower energy state. Be careful about units. The Rydberg constant in eV is 13.605693009 eV That would be multiplied by the charge on the electron 1.602× 10-19 C to give 2.18× 10-18 J A photon with this energy would have a frequency f such that E=hf. Its wavelength would be λ = c/f = hc/E. Sometimes it is handy to measure the Rydberg constant in units of 1/length for this reason. You may see it given as 109737 cm-1 if you search the web, so be aware that's not joules. The following questions are intended to help you understand the connection between…arrow_forwardFigure 1 of 1 > Energy (J) 4. 3. 2- 1- 1,2-1 +. -1 -21 K, + U, +Wt= K, + U, + AE %3D ext |||arrow_forward
- The hydrogen atom was initially at the state where n=3 and l=2. It then decays to a lower state releasing a photon. What are the possible photon energies(in [eV]) that may be observed?arrow_forwardA hydrogen atom has a radius of 0.05 nm with a position accuracy of 1.0%. Calculate the uncertainty in the atom’s velocity. Use "E" format for scientific notation (i.e. for 1.23 x 10, write as 1.23E–9). Do not Include the units in your answer.arrow_forward(Hand by writing ans.)A certain atom has an energy level of 3.50 eV above the ground state. When excited to this state, it remains 4.0µs, on average, before emitting a photon and returning to the ground state. i) What is the energy of the photon? What is the wavelength of the photon? ii) What is the smallest possible uncertainty in the energy of the photon?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning