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what is the speed of light equation give the unit for each variable. Another way of writing this is. C the speed of light 300000 kms or 30 x 10 8 ms the wavelength of light usually measured in meters or Angstroems 1 A 10-10 m f the frequency at which light waves pass by measured in units of per seconds 1s.
Measuring The Speed Of An Object Physics Lab Video Lesson Transcript Study Com from study.com
The general quadratic equation is where and are constants. The time it takes for the light from the Sun to reach the Earth is around 8 minutes. The speed of light is close to 300000 kms 186300 miles per second.
The unit for frequency in the International System of Units is hertz which is abbreviated as Hz.
Its exact value is defined as 299 792 458 metres per second approximately 300 000 kms or 186 000 mis. This was realized by Maxwell circa 1864 as soon as the equation c 1e0m012 2998 X 108mswas discovered since the speed of light had been accurately measured by then and its agreement. The equation that relates the two is. F the frequency of the incident light in hertz Hz phi the work function in joules J E k the maximum kinetic energy of the emitted electrons in joules J The energy of a photon of light hf and the work function f is the minimum energy required to remove an electron from the surface of the material.
