A photon of wavelength 3.35 m has just enough energy to raise an electron from the valence

Question:

A photon of wavelength 3.35 μm has just enough energy to raise an electron from the valence band to the conduction band in a lead sulfide crystal.

(a) Find the energy gap between these bands in lead sulfide.

(b) Find the temperature T for which kT equals this energy gap.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Aug 02, 2011 02:30 PM

See More Questions

An atom with mass m emits a photon of wavelength A. (a) What is the recoil speed of the atom? (b) What is the kinetic energy K of the recoiling atom? (c) Find the ratio KIE, where E is the energy of...
A photon of wavelength 0.14800 nm, traveling due east, is scattered by an electron initially at rest. The wavelength of the scattered photon is 0.14900 nm and it moves at an angle q north of east....
A photon of wavelength = 6.0 pm is scattered at right angles by a stationary free electron. Find: (a) The frequency of the scattered photon; (b) The kinetic energy of the Compton electron.
The statement of financial position of Kingbird Limited follows for the current year, 2020: KINGBIRD LIMITED Statement of Financial Position December 31, 2020 Current assets $135,660 Current...
Regal Business Supplies began operations October 1, 2019. The firm sells its merchandise for cash and on open account. Sales are subject to a 5 percent sales tax. During October, Regal Business...
Cherise considers movies and concerts to be perfect substitutes. When Cherise maximizes her utility, what will optimal bundle of movies and concerts probably look like? Explain your reasoning by...
Generate the full set of clauses for the map-coloring graph in Figure 8.1. Resolve these clauses to prove that a three-coloring solution does exist for the graph. data from figure 8.1 A B C D
Klumper Corporation is a diversified manufacturer of industrial goods. The companys activity- based costing system contains the following six activity cost pools and activity rates: Activity data...
Cullumber Company is considering a long-term investment project called ZIP. ZIP will require an investment of $104,000. It will have a useful life of 4 years and no salvage value. Annual revenues...
MenloRand pty Itd company is a registered logistics operator and has accumulated the following data for a delivery truck. You are required to apply the below given information to: a) Determine the...
Work Problem 22 for diamond, for which the energy gap is 7.0 eV.
(a) Use Equation 27-24 to calculate the superconducting energy gap for tin (T c = 3.72 K) and compare your result with the measured value of 6 ? 10 ?4 eV. (b) Use the measured value to calculate the...
Prepare a worksheet from the following information: (A and B) Merchandise Inventoryending¦¦¦¦¦¦¦. $13 (C) Store Supplies on...
Let us explore whether there is any way to distinguish acceleration due to rotation from acceleration due to a gravitational force. Imagine a deep bowl with a small volume of milk in it. (a) What...
Chang Industries purchased a piece of equipment on January 1, 2025. The equipment cost HK$$600,000$ and has an estimated life of 8 years and a residual value of HK$$80,000.$ What was the...
Determine the magnitude of the momentum of a muon in a reference frame in which the muon moves with speed $0.500 c_{0}$. The mass of a muon is 207 times the mass of an electron.
What is the magnitude of the gravitational force between two $1.0 \mathrm{~g}$ marbles placed $100 \mathrm{~mm}$ apart?
According to an observer at rest in the Earth reference frame, ship A travels in one direction at speed $0.862 c_{0}$ while ship B moves in the opposite direction at $0.717 c_{0}$. Ship A sends...
Richard is driving home to visit his parents. $125 \mathrm{mi}$ of the trip are on the interstate highway where the speed limit is $65 \mathrm{mph}$. Normally Richard drives at the speed limit;...
How many years will it take a $700 balance to grow into $900 in an account earning 5%?
You have a great job in which you earn $25.50 per hour. How many dollars do you earn per second? Use unit analysis to calculate your answer, and show your work.
(a) What minimum force F is needed to lift the piano (mass M) using the pulley apparatus shown in Fig. 4-60? (b) Determine the tension in each section of rope: FT1, FT2, FT3 and FT4. Fr3 F72FTI FT4
A jet aircraft is accelerating at 3.5 m/s2 at an angle of 45o above the horizontal. What is the total force the cockpit seat exerts on the 75-kg pilot?
In the design process for a child-restraint chair an engineer considers the following set of conditions: A 12-kg child is riding in the chair, which is securely fastened to the seat of an automobile...
Select a company you are familiar with and detail one short-term and one longer-term strategy, then discuss how the role of human resource development can provide valuable advice and counsel in the...
Sunspot Beverages, Limited, of Fiji uses the weighted-average method of process costing. It makes blended tropical fruit drinks in two stages. Fruit juices are extracted from fresh fruits and then...
How does TPM intersect with Lean Manufacturing principles? Discuss the synergies between TPM and Lean practices, such as continuous improvement (Kaizen) and value stream mapping, in reducing waste...

A photon of wavelength 3.35 m has just enough energy to raise an electron from the valence

Question:

Step by Step Answer:

a E g hc E g 12403...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Electricity and Magnetism questions