Solving for Frequency & Wavelength of Light in Air & Glass

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SUMMARY

The discussion focuses on calculating the frequency of red light in air and its wavelength in glass. Given the wavelength of red light as 560 nm and the speed of light in glass as 1.96 x 108 m/s, the frequency in air can be determined using the formula f = c/λ, where c is the speed of light in a vacuum (3 x 108 m/s). The wavelength in glass is calculated using the refractive index, with the formula λglass = λair/n, where n is the refractive index of glass (1.52).

PREREQUISITES
  • Understanding of the speed of light in a vacuum (c = 3 x 108 m/s)
  • Knowledge of the refractive index concept
  • Familiarity with the wave equation (v = fλ)
  • Basic principles of light refraction
NEXT STEPS
  • Learn how to calculate frequency using the formula f = c/λ
  • Study the concept of refractive index and its applications in optics
  • Explore the relationship between wavelength and velocity in different media
  • Investigate the effects of light refraction on various materials
USEFUL FOR

Students in physics, optical engineers, and anyone interested in the properties of light and its behavior in different media.

Ry122
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Problem: red light of wavelength 560nm is passed from air into glass where its velocity is 1.96 x 10^8 m/s.
(c=3*10^8)
Find the frequency of the light in air and the wavelength of the light in glass.

Can someone please tell me what c is and what formulas i need to use.
thanks
 
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c is the symbol for the speed of light in a vacuum.

Have you met the concept of refraction?
 
Is this how u could calculate the velocity?
n=vair/vglass
vglass=vair/n
(3x10^8/1.52) = 197368421.1 m/s
 

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