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 371 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?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Technique of Light Palpation Technique of Light Palpation
The biochemical reactions of near-infrared light The biochemical reactions of near-infrared light
Hypothetical Range of Perceived Brightness (in jnds) as a Function of Intensity Hypothetical Range of Perceived Brightness (in jnds) as a Function of Intensity
Moving the hip through its full range of motion. Moving the hip through its full range of motion.
Apply light circular friction over the wrist using your thumbs. Observe the skin moving over the ... Apply light circular friction over the wrist using your thumbs. Observe the skin moving over the ...
The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr
Video: Ionic bonds - role of ions in the body

For a complete list of videos, visit our video library