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 :

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A

$h^{1} c^{1} T^{1}$

B

$h^{0} c^{-1} T^{-1}$

C

$h^{1} c^{0} T^{-1}$

D

$h^{-1} c T^{0}$

Solution:

We know
$[R] =L^{-1}$
$=\frac{1}{L}=\frac{1}{c T}=c^{-1} T^{-1}$

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