This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A metallic surface has a work function of 2.50 eV. What is the longest wavelength that will eject ... (Read 177 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jul 27, 2018
A metallic surface has a work function of 2.50 eV. What is the longest wavelength that will eject electrons from the surface of this metal?
 
  What will be an ideal response?

Question 2

Assume a proton in a 1-dim box of width 3.0 fm is in its 1 st excited state.
 
  (a) What is its kinetic energy (in eV)?
  (b) How close (fm) to the wall of the box is the probability density a maximum?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jsm54321

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

497. nm

Answer to Question 2

(a) 91. MeV
(b) 0.75 fm


Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jul 27, 2018
TY


jsm54321

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Structure and function of a chemical synapse. Structure and function of a chemical synapse.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
How to find the anti-derivative of a function (Part 3) How to find the anti-derivative of a function (Part 3)
A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ... A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ...
Video: Neural regulation of mechanical digestion- CNS voluntary, ANS & ENS controlled involuntary movements

For a complete list of videos, visit our video library