Homework Help is Here – Start Your Trial Now!
Science
Physics
1. Starting from the law of conservation of total energy, show that Vstop= (KE)max/22. The energy density of electromagnetic radiation in some region of space is 3.2 × 10-8 J/m3. Assume that the radiation has a wavelength 610 nm. What is the photon density? 3.The maximum energy of photoelectrons from Al is 2.3 eV for radiation of 200 nm and 0.9 eV for radiation of 216 nm. Use these data to calculate the Planck’s constant and the work function of Al. 4. The threshold wavelength for the photoelectric effect in tungsten is 270 nm. Calculate the work function of tungsten, and calculate the maximum kinetic energy that a photoelectron can have when radiation of 120 nm falls on tungsten

1. Starting from the law of conservation of total energy, show that Vstop= (KE)max/22. The energy density of electromagnetic radiation in some region of space is 3.2 × 10-8 J/m3. Assume that the radiation has a wavelength 610 nm. What is the photon density? 3.The maximum energy of photoelectrons from Al is 2.3 eV for radiation of 200 nm and 0.9 eV for radiation of 216 nm. Use these data to calculate the Planck’s constant and the work function of Al. 4. The threshold wavelength for the photoelectric effect in tungsten is 270 nm. Calculate the work function of tungsten, and calculate the maximum kinetic energy that a photoelectron can have when radiation of 120 nm falls on tungsten

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter22: Reflection And Refraction Of Light
Section: Chapter Questions
Problem 2P
See similar textbooks
icon
Related questions
Question

1. Starting from the law of conservation of total energy, show that Vstop= (KE)max/2
2. The energy density of electromagnetic radiation in some region of space is 3.2 × 10-8 J/m3. Assume that the radiation has a wavelength 610 nm. What is the photon density?

3.The maximum energy of photoelectrons from Al is 2.3 eV for radiation of 200 nm and 0.9 eV for radiation of 216 nm. Use these data to calculate the Planck’s constant and the work function of Al.

4. The threshold wavelength for the photoelectric effect in tungsten is 270 nm. Calculate the work function of tungsten, and calculate the maximum kinetic energy that a photoelectron can have when radiation of 120 nm falls on tungsten

Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781285737027
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics Volume 3
University Physics Volume 3
Physics
ISBN:
9781938168185
Author:
William Moebs, Jeff Sanny
Publisher:
OpenStax
Modern Physics
Modern Physics
Physics
ISBN:
9781111794378
Author:
Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Glencoe Physics: Principles and Problems, Student…
Glencoe Physics: Principles and Problems, Student…
Physics
ISBN:
9780078807213
Author:
Paul W. Zitzewitz
Publisher:
Glencoe/McGraw-Hill
SEE MORE TEXTBOOKS