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Q.
In at new system of units the fundamental quantities are planks constant $(h)$, speed of light $(c)$ and tine $(T)$. Then the dimensions of Rydberg's constant will be :
Atoms
Solution:
We know
$[R] =L^{-1}$
$=\frac{1}{L}=\frac{1}{c T}=c^{-1} T^{-1}$