Enough information? (WaveLength Question)

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Homework Help Overview

The discussion revolves around calculating the wavelength of a radio station broadcasting at 820 AM, with a focus on understanding the relationship between frequency and wavelength in the context of electromagnetic waves.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to determine the wavelength but expresses uncertainty about the speed of electromagnetic waves. Participants question the necessity of knowing this speed and provide guidance on its value.

Discussion Status

Participants are exploring the necessary information to calculate the wavelength, with some providing helpful guidance regarding the speed of light as the velocity of electromagnetic waves. There is an ongoing clarification of assumptions related to the problem.

Contextual Notes

The original poster notes that the speed of electromagnetic waves is not provided in their textbook, leading to the inquiry about its value.

quickslant
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All it the question says is that AM modulation operates at 1 AM = 1 KHz
and 800 AM = 800 KHz. the questions says to calculate the wavelength of radio station broadcasting at 820 AM
now i know that frequency is 820 KHz but i don't know what velocity it travels at so how do i calculate the wavelength from that
 
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You should know the speed it travels at.

What speed do all electromagnetic waves travel at?
 
i don't know its not given in the book..
 
looking it up on the internet it says 3.0 x 10^8 m/s is that correct
 
yes, that's the speed of light and it's the speed at which all em waves
 

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