Displaystyle E frac mc 2 sqrt 1- frac v 2 c 2 with v being the neutrino speed and c the speed of light. And when you measure the wavelength and multiply it out by the microwave frequency youll end up with a surprisingly close approximation of the speed of light. Quick video on how to calculate for either the frequency or wavelength of light using the speed of light equation.
In 1983 an international commission on weights and measures set the speed of light in a vacuum at the calculation we use today.
Please enter distance or time the other value will be calculated. To calculate this number use the formula d c t where d is 1 light year c is the speed of light and t is the number of seconds in 1 year. The neutrino mass m is currently estimated as being 2 eV c² and is possibly even lower than 02 eVc². Aim the point light source into the object at an angle.