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Physics !:(

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A carbon dioxide laser is an infrared laser. A CO laser with a cavity length of 48.6cm oscillates in the m=100,000.0 mode. What is the wavelength of the laser beam?

b). What is the frequency of the laser beam?

  • Physics !:( - ,

    Is this a CO laser or a CO2 laser?
    I have never heard of a CO laser.

    If m is the number of half waves bewtween the cavity mirrors, the wavelength is 48.6 cm/50,000
    = 9.72*10^-4 cm
    = 9.72*10^-6 m
    = 9.72 microns

    This is one of several possible CO2 laser wavelengths.


  • Physics !:( - ,

    (b) For the frequency, divide the speed of light by the computed wavelength.

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