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Title: How do i find the wavelength of a photon when it has a frequency of 64.6THz? Post by: QPhil on Sep 21, 2013 1Thz=10
Title: Re: How do i find the wavelength of a photon when it has a frequency of 64.6THz? Post by: bio_man on Sep 21, 2013 Hi there, how is the question stated exactly? I'm assuming this came from a textbook or worksheet...
Title: Re: How do i find the wavelength of a photon when it has a frequency of 64.6THz? Post by: savio on Sep 21, 2013 Hi Phil
Electromagnetic waves travel at the speed of light (299,792,458 meters per second) and their frequency and wavelength can be determined by the formulas: (http://www.1728.org/freq.gif) where 'c' is the speed of light in meters per second, the Greek letter lambda λ is the wavelength in meters and the frequency is in cycles per second. Also, the photon energy can be calculated by the formulas: (http://www.1728.org/freq2.gif) where 'e' is energy (joules), 'f' is frequency (cycles per second), 'h' is Planck's constant (6.6260695729 x 10-34 Joule*seconds) and wavelength λ is in meters. |