This topic contains a solution. Click here to go to the answer

Author Question: A photon has energy of 4.20 eV. To what wavelength does this energy correspond? A) 321 nm ... (Read 69 times)

vHAUNG6011

  • Hero Member
  • *****
  • Posts: 514
A photon has energy of 4.20 eV. To what wavelength does this energy correspond?
 
  A)
 
  321 nm
  B)
 
  103 nm
  C)
 
  296 nm
  D)
 
  412 nm
  E)
 
  420 nm

Question 2

What is the meaning of the term critical mass?
 
  A)
 
  This refers to the mass of the critical elements in a reactor, i.e., the uranium or plutonium.
  B)
 
  This refers to the minimum amount of fissionable material required to sustain a chain reaction.
  C)
 
  This refers to the maximum amount of fissionable material required to sustain a chain reaction.
  D)
 
  This is the amount of mass needed to make a power reactor economically feasible.
  E)
 
  This is the material which is just on the verge of becoming radioactive.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

C

Answer to Question 2

B




vHAUNG6011

  • Member
  • Posts: 514
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

For a complete list of videos, visit our video library