1.

In order to measure physical quantities in the sub-atomic world, the quantum theory often employs energy [E], angular momentum [J] and velocity [c] as fundamental dimensions instead of the usual mass, length and time. Then, the dimension of pressure in this theory is

A. \[\frac{{{[E]}^{4}}}{{{[J]}^{3}}{{[c]}^{3}}}\]
B. \[\frac{{{[E]}^{2}}}{[J][c]}\]
C. \[\frac{[E]}{{{[J]}^{2}}{{[c]}^{2}}}\]
D. \[\frac{{{[E]}^{3}}}{{{[J]}^{2}}{{[c]}^{2}}}\]
Answer» B. \[\frac{{{[E]}^{2}}}{[J][c]}\]


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