The discussion revolves around the Doppler effect as it applies to electromagnetic waves, specifically in the context of a car approaching a radio station and the observed change in frequency. Participants are exploring the relationship between the Doppler effect and the frequency of radio waves.
The discussion is ongoing, with participants sharing their thoughts and attempts to clarify their understanding of the Doppler effect. Some have found relevant resources and are encouraged to explore further, particularly in relation to the Hubble red shift.
There is a mention of previous coursework and uncertainty about the application of the Doppler effect to this problem, as well as a focus on specific chapters from a textbook that may not directly address the current question.
Planter said:Homework Statement
The car is approaching a radio station at 25m/s. Broadcast frequency is 74.5 MHz.
What change in frequency does the driver observe.
Homework Equations
I really don't know. The answers should be between chapters 26-29 of the Serway book.
But I am drawing a blank. "clearly not the doppler effect" right?
The Attempt at a Solution
Reading doppler effect right now.
berkeman said:Definitely the Doppler Effect. Keep on reading a bit, and you'll see it addressed. Show us what you get for an answer!
Planter said:Are you sure? Because doppler effect was taught "last semester" in part one of this class. Which is why I am weary of using it... It's not sound frequency i don't think.
berkeman said:Well, what is the Doppler Effect (define it in your own words -- don't look up the definition yet)?
And, what would be different if the source was a stationary whistle, instead of a radio station? What would be the same?
Planter said:Ok, I got it.. Found it,, haha Doppler effect on EM waves, Chapter 21.13... Thank god for PDF books. I was only searching in chapters 26+ because all the questions prior to this one was pertaining.