Finding frequencies and wavelengths

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SUMMARY

This discussion focuses on solving physics problems related to electromagnetic waves in free space. The key questions involve calculating the frequency of a wave with a wavelength of 1 cm, determining the wavelength of a wave with a frequency of 100 MHz, and finding the wavelength of a wave with a frequency of 300 MHz. The relationship between frequency, wavelength, and wave velocity is crucial, specifically the equation: velocity = frequency × wavelength. Understanding this equation is essential for solving the posed problems.

PREREQUISITES
  • Understanding of electromagnetic wave properties
  • Knowledge of the wave equation: velocity = frequency × wavelength
  • Familiarity with units of frequency (Hz, MHz) and wavelength (cm, m)
  • Basic physics concepts related to waves
NEXT STEPS
  • Study the wave equation in detail, focusing on its applications in different media
  • Learn how to convert between different units of frequency and wavelength
  • Explore the concept of wave velocity in various contexts, including electromagnetic waves
  • Practice solving problems involving frequency and wavelength calculations
USEFUL FOR

Students struggling with physics concepts related to waves, particularly those studying electromagnetic waves and their properties. This discussion is beneficial for anyone seeking to improve their understanding of wave mechanics and related calculations.

givemeknowledge
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Hey! I'm struggling really badly with some physics homework, we've done nothing on this stuff in class and I can't find ANY help online and I'm stressing pretty bad right now so ANY help would be AMAZING!

Here's my questions...

"This question is about electromagnetic waves traveling in free space:
(a) Find the frequency of a wave where the wavelength = 1cm
(b) Find the wavelength of a wave with a frequency of 100 MHz
(c) Find the wavelength of a wave with a frequency of 300 MHz"

I assure you I have tried for HOURS to get my head around these I just can't and am desperate for some help!
Thank you SO much in advance!
 
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givemeknowledge said:
Hey! I'm struggling really badly with some physics homework, we've done nothing on this stuff in class and I can't find ANY help online and I'm stressing pretty bad right now so ANY help would be AMAZING!

Here's my questions...

"This question is about electromagnetic waves traveling in free space:
(a) Find the frequency of a wave where the wavelength = 1cm
(b) Find the wavelength of a wave with a frequency of 100 MHz
(c) Find the wavelength of a wave with a frequency of 300 MHz"

I assure you I have tried for HOURS to get my head around these I just can't and am desperate for some help!
Thank you SO much in advance!
pl. show what you have done to solve the problem...
you must have read about electromagnetic waves or simply waves moving in space or a medium.
what is wavelength ?
what is called frequency of a wave?
and how the wavelength and frequency gets related -through some other constant of the wave?
 
+1

You appear to be missing just one equation that relates frequency, velocity and wavelength. Look it up.
 
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