The dimensional formula for Boltzmann #3

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The dimensional formula for Boltzmann's constant is

A

$[M{L^2}{T^{ - 2}}{\theta ^{ - 1}}]$

B

$[M{L^2}{T^{ - 2}}]$

C

$[M{L^0}{T^{ - 2}}{\theta ^{ - 1}}]$

D

$[M{L^{ - 2}}{T^{ - 1}}{\theta ^{ - 1}}]$
The dimensional formula for Boltzmann's constant is
$k = \left[ {\frac{R}{N}} \right] = [M{L^2}{T^{ - 2}}{\theta ^{ - 1}}]$