/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q23P Some material consisting of a co... [FREE SOLUTION] | 91影视

91影视

Some material consisting of a collection of microscopic objects is kept at a high temperature. A photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of0.3eV,0.5eV,0.8eV,2,0eV,2.5eV,and2.8eV. These are the only photon energies observed. (a) Draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. On the diagram, indicate the transitions corresponding to the emitted photons. Explain briefly. (b) Would a spring鈥搈ass model be a good model for these microscopic objects? Why or why not? (c) The material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. Next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. What photon energies in this beam of light are observed to be significantly reduced in intensity (鈥渄ark absorption lines鈥)? Explain briefly.

Short Answer

Expert verified

(a) Ground state,0.3eV,0.8eV,and2.8eV

(b) No

(c)0.3eV,0.8eV,and2.8eV

Step by step solution

01

Identification of the given data

The given data can be listed below as-.

The photon energies detected by the photon detector areE1=0.3eV,E2=0.5eV,E3=0.8eV,E4=2.0eV,E5=2.5eV,E6=2.8eV

02

Significance of the energy of the photon

The photon鈥檚 energy is equal to the product of the Planck鈥檚 constant and the frequency of the photon.

The expression for the energy of the photon is given as follows,

E=hv

Here, h is the Planck鈥檚 constant and v is the frequency.

03

Determination of the energy-level diagram for one of the microscopic objects

The energy-level diagram of the microscopic objects is shown as follows,

During the energy exchange E=hv, the electrodes mainly move from one orbit to another. The absorption layers mainly consist of the ground state,E1=0.3eV,E3=0.8eV,andE6=2.8eV due to the passing of the light via material at a low temperature.

Thus, the absorption layers mainly consist of the ground state , E1=0.3eV,E3=0.8eV,andE6=2.8eVdue to the passing of the light via the material at a low temperature.

04

Determination of the suitability of a spring-mass model for microscopic objects

The spring-mass system mainly works as a simple oscillator that has evenly spaced levels of energy and not suitable for the microscopic objects.

Thus, a spring-mass model may not be good for these microscopic objects.

05

Determination of the photon energies in the beam of light that is observed to be reduced significantly in intensity

From the energy-level diagram, it is evident that there are mainly three types of photon energyin the beam of light are reducingthat includes highest-energy, second highest energy, and the lowest energy dark. Hence, from the energy level diagram, the values are , E6=2.8eV,E3=0.8eV,andE1=0.3eVrespectively.

Thus, the photon energies in this beam of light that are observed to be reduced significantly in intensity are ,E6=2.8eV,E3=0.8eV,andE1=0.3eV.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

For a certain diatomic molecule, the lowest-energy photon observed in the vibrational spectrum is 0.17eV. What is the energy of a photon emitted in a transition from the 5th excited vibrational energy level to the 2nd excited vibrational energy level, assuming no change in the rotational energy?

A certain material is kept at very low temperature. It is observed that when photons with energies between 0.2 and 0.9 eV strike the material, only photons of 0.4 eV and 0.7 eV are absorbed. Next, the material is warmed up so that it starts to emit photons. When it has been warmed up enough that 0.7 eV photons begin to be emitted, what other photon energies are also observed to be emitted by the material? Explain briefly.

At t =0 all of the atoms in a collection of 10000 atoms are in a excited state whose lifetime is 25 ns. Approximately how many atoms will still be in excited state at t= 12 ns.

The Frank Hertz experiment involved shooting electrons into a low density gas of mercury atoms and observing discrete amounts of kinetic energy loss by the electrons. Suppose that instead the similar experiment is done with a very cold gas of atomic hydrogen, so that all of the hydrogen atoms are initially in ground state. If the kinetic energy of an electron is 11.6 eV just before it collides with a hydrogen atom. How much kinetic energy will the electron have just after it collides with and excites the hydrogen atom?

Suppose that a collection of quantum harmonic oscillators occupies the lowest four energy levels, and the spacing between levels is 0.4eV. What is the complete emission spectrum for this system? That is, what photon energies will appear in the emissions? Include all energies, whether or not they fall in the visible region of the electromagnetic spectrum.

See all solutions

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.