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

Author Question: A beam of light with a frequency range from 3.01 1014 Hz to 6.10 1014 Hz is incident on a metal ... (Read 63 times)

Lobcity

  • Hero Member
  • *****
  • Posts: 524
on: Jul 29, 2018
A beam of light with a frequency range from 3.01  1014 Hz to 6.10  1014 Hz is incident on a metal surface.
 
  If the work function of the metal surface is 2.20 eV, what is the maximum kinetic energy of photoelectrons ejected from this surface? (h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
  A) 0.42 eV B) 0.21 eV C) 0.33 eV D) 0.48 eV E) 0.16 eV

Question 2

Which of the following are characteristics of laser light? (There may be more than one correct choice.)
 
  A) It is coherent.
  B) It contains a full spectrum of wavelengths.
  C) It is produced by an inverted population of atoms.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jordin Calloway

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A, C


Lobcity

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jul 29, 2018
TY


Jordin Calloway

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
Assessment of Light Touch Assessment of Light Touch
Trapping of Light by a Black Hole Trapping of Light by a Black Hole
A “reduced power” warning light indicates a fault with the electronic throttle control system on ... A “reduced power” warning light indicates a fault with the electronic throttle control system on ...
Press up under the cheekbones. Use light to moderate pressure to press into the soft tissues up ... Press up under the cheekbones. Use light to moderate pressure to press into the soft tissues up ...
Samples from the range of continuous variation in human eye color. Different alleles of more than on Samples from the range of continuous variation in human eye color. Different alleles of more than on
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library