How Do You Calculate Wavelength and Wave Speed?

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SUMMARY

The discussion focuses on calculating the wavelength of a wave given its frequency of 4.0 x 107 Hz using the equation V = wavelength × frequency. The speed of light, approximately 299,792,458 m/s, is utilized in the calculations, confirming that electromagnetic radiation travels at this speed in a vacuum. Participants clarify the relationship between wavelength, frequency, and speed, emphasizing the importance of unit consistency and scientific notation in calculations.

PREREQUISITES
  • Understanding of wave equations, specifically V = wavelength × frequency
  • Familiarity with scientific notation and calculator functions (EE button)
  • Knowledge of the speed of light (c = 299,792,458 m/s)
  • Basic concepts of electromagnetic radiation and its properties
NEXT STEPS
  • Learn how to use scientific notation in calculations effectively
  • Study the relationship between frequency, wavelength, and speed in different mediums
  • Explore the implications of electromagnetic wave behavior in various environments
  • Investigate advanced wave properties, including amplitude and phase
USEFUL FOR

Students studying physics, educators teaching wave mechanics, and anyone interested in understanding the principles of wave behavior and calculations.

  • #31
Meesh said:
Again, your equation is wavelength = speed / frequency. ( if you are unsure do a unit check... Does metres = [m/s]/(1/s) ? Yes. So you should just have 790/31200. Don't forget to look at the units to be sure... Or look at the equation. :)
Okay, so is 2.53 cm an acceptable answer?
 
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  • #32
Uh, I need help this oscillation question?

Water waves in a shallow dish are 6.0 cm long. At one point the water oscillates up and down at a rate of 4.8 oscillations per second.
a. What is the speed of the water waves?
b. What is the period of the water waves?

Oscillations? 6.0 cm is the wavelength probably.
 
  • #33
Sonny18n said:
Uh, I need help this oscillation question?

Water waves in a shallow dish are 6.0 cm long. At one point the water oscillates up and down at a rate of 4.8 oscillations per second.
a. What is the speed of the water waves?
b. What is the period of the water waves?

Oscillations? 6.0 cm is the wavelength probably.

Please start a new thread with this new question. This thread is now locked.
 

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