Learning Materials
Features
Discover
Chapter 5: Problem 2
Approximately how many times around the Earth could a beam of light travel in one second?
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
A light source emits infrared radiation at a wavelength of \(1150 \mathrm{~nm}\). What is the frequency of this radiation?
The equation that relates the frequency, wavelength, and speed of a light wave, \(v=c / \lambda\), can be rewritten as \(c=v \lambda . \mathrm{A}\) friend who has studied mathematics but not much astronomy or physics might look at this equation and say: "This equation tells me that the higher the frequency \(v\), the greater the wave speed \(c\). Since visible light has a higher frequency than radio waves, this means that visible light goes faster than radio waves." How would you respond to your friend?
Instruments on board balloons and spacecraft detect \(511-\mathrm{keV}\) photons coming from the direction of the center of our Galaxy. (The prefix \(\mathrm{k}\) means kilo, or thousand, so \(1 \mathrm{keV}=\) \(10^{3} \mathrm{eV}\).) What is the wavelength of these photons? To what part of the electromagnetic spectrum do these photons belong?
What is the temperature of the Sun's surface in degrees Fahrenheit?
Search the World Wide Web for information about rainbows. Why do rainbows form? Why do they appear as circular arcs? Why can you see different colors?
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Exams 
GCSE 
IGCSE 
AS 
A Level 
International A Level 
University Admissions Tests 
Flashcards 
Vaia AI 
Notes 
Study Plans 
Study Sets 
Find a job 
Find a degree 
Student Deals 
Magazine 
Mobile App