An LED with total power Ptot=910 mW emits UV light of wavelength 370 nm. Assuming the LED is 45% efficient and acts as an isotropic point source (i.e., emits light uniformly in all directions), what is the amplitude of the electric field, E0, at a distance of 2.5 cm from the LED?
An LED with total power Ptot=910 mW emits UV light of wavelength 370 nm. Assuming the LED is 45% efficient and acts as an isotropic point source (i.e., emits light uniformly in all directions), what is the amplitude of the electric field, E0, at a distance of 2.5 cm from the LED?
Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 54P: An incandescent light bulb emits only 2.6 W of its power as visible light. What is the rms electric...
Related questions
Question
An LED with total power Ptot=910 mW emits UV light of wavelength 370 nm. Assuming the LED is 45% efficient and acts as an isotropic point source (i.e., emits light uniformly in all directions), what is the amplitude of the electric field, E0, at a distance of 2.5 cm from the LED?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning