Question
Hard
Solving time: 5 mins
Q.222. A free electron is located in the field of a plane electromagnetic wave. Neglecting the magnetic component of the wave disturbing its motion, find the ratio of the mean energy radiated by the oscillating electron per unit time to the mean value of the energy flow density of the incident wave.
Found 6 tutors discussing this question
Discuss this question LIVE
14 mins ago
Text solutionVerified
If the electric field of the wave is
then this induces a dipole moment whose second derivative is
Hence radiated mean power
On the other hand, the mean Poynting flux of the incident radiation is
Thus
then this induces a dipole moment whose second derivative is
Hence radiated mean power
On the other hand, the mean Poynting flux of the incident radiation is
Thus
Was this solution helpful?
86
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice questions from Problems in General Physics (IE Irodov)
Question 1
Hard
Views: 5,525
Question 2
Hard
Views: 5,482
Question 3
Hard
Views: 5,636
Question 4
Hard
Views: 5,986
Practice more questions from Electromagnetic Waves
Question 2
Easy
Views: 6,060
Question 3
Easy
Views: 6,167
Practice questions on similar concepts asked by Filo students
Question 1
Views: 5,438
Question 2
Views: 5,120
Question 3
Views: 5,322
Question 4
Views: 5,405
Stuck on the question or explanation?
Connect with our Physics tutors online and get step by step solution of this question.
231 students are taking LIVE classes
Question Text | Q.222. A free electron is located in the field of a plane electromagnetic wave. Neglecting the magnetic component of the wave disturbing its motion, find the ratio of the mean energy radiated by the oscillating electron per unit time to the mean value of the energy flow density of the incident wave. |
Topic | Electromagnetic Waves |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 86 |