Planck Length

Written by Jerry Ratzlaff on . Posted in Relativity

The Planck length is the fundamental unit of length in the system of Planck units.

\(\large{ l_p = 1.62 x 10^{-35}m }\) 

 

Planck Length Formula

\(\large{ l_p = \sqrt{ \frac{ h\;G } { c^3 } } }\)   

Where:

 Units English Metric
\(\large{ l_p }\) = Planck length \(\large{ft}\) \(\large{m}\)
\(\large{ G }\) = gravitational constant \(\large{\frac{lbf-ft^2}{lbm^2}}\)  \(\large{\frac{N - m^2}{kg^2}}\) 
\(\large{ h }\) = Planck constant (reduced) \(\large{\frac{lbf-ft}{sec}}\) \(\large{J-s}\)
 \(\large{ c }\) = speed of light in vacuum  \(\large{\frac{ft}{sec}}\)  \(\large{\frac{m}{s}}\)

 

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