Calculating Frequency of Blue Light: Speed of Light & Wavelength Formula

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SUMMARY

The discussion focuses on calculating the frequency of blue light using the speed of light and its wavelength. The speed of light is established as 3 x 108 m/s, and the wavelength of blue light is approximately 450 nm, which converts to 450 x 10-9 m. The formula used is v = fλ, leading to the calculation f = (3 x 108) / (450 x 10-9), resulting in a frequency of approximately 6.67 x 1014 Hz.

PREREQUISITES
  • Understanding of the speed of light (3 x 108 m/s)
  • Knowledge of wavelength measurement in nanometers (nm)
  • Familiarity with the formula v = fλ
  • Ability to convert units from nanometers to meters
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  • Learn about the properties of electromagnetic waves
  • Study the relationship between frequency and energy of light
  • Explore applications of light frequency in spectroscopy
  • Investigate the effects of blue light on human health
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Students in physics, educators teaching wave properties, and anyone interested in the scientific principles of light and its effects.

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Homework Statement



The speed of light is 3 x [tex]10^8[/tex] m/s. Blue light has a wavelength of about 450nm (nm = 10^-9 m). Calculate the frequency of this light

Homework Equations



v=f[tex]\lambda[/tex]

The Attempt at a Solution



3 x [tex]10^8[/tex] = f x 450
f = [tex]\frac{3 times 10^8}{450}[/tex]
 
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nearly there. Convert that wavelength to meters.
 

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