Re: How is Plank's Constant calculated?

Dear Gibran Shah

Planck' Constant h is a very important number which helps to understand 
things in the world of atoms (quantum theorie). It is a fundamental 
constant of nature, just like the speed of light c (300 000 km/s). Thus, it 
cannot be 'calculated' (just like people can calculate the number 
pi=3.141..) but it has to be 'measured'. The easiest way to do so is by the 
so called (outer) photoeffect experiment. This effect is described in any 
good textbook on modern physics. By the way: Albert Einstein got his nobel 
price not for finding the theory of relativity but for explaining the 
photoeffect !