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

Author Question: What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work function ... (Read 55 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work function is 5.0 eV when illuminated by a light whose wavelength is 200 nm?
 a. 460
  b. 650
  c. 420
  d. 550
  e. 1 480

Question 2

The threshold wavelength for photoelectric emission of a particular substance is 500 nm. What is the work function (in eV)?
 a. 4.2
  b. 4.0  10-19
  c. 4.0  10-10
  d. 2.5  10-19
  e. 2.5


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

E


neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

The structure of stomatal guard cells affects their function. The structure of stomatal guard cells affects their function.
About to break the surface for air at Kona, Hawaii About to break the surface for air at Kona, Hawaii
Flow cytometry. Cells expressing the surface markers CD4, CD8, and CD3 are labeled in a direct ... Flow cytometry. Cells expressing the surface markers CD4, CD8, and CD3 are labeled in a direct ...
Let f(x)=log10(bottom exponent)x. For each function g(x) i), iii), v Let f(x)=log10(bottom exponent)x. For each function g(x) i), iii), v
Withr this assumption, the maximum radius of M+ is Withr this assumption, the maximum radius of M+ is
An automobile engine provides 524 Joules of work to push the pistons and generates 2160 Joules ... An automobile engine provides 524 Joules of work to push the pistons and generates 2160 Joules ...
Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

For a complete list of videos, visit our video library