Physics · 2021
JEE Main · 25 February 2021, Shift 2 · Q1
If e is the electronic charge, c is the speed of light in free space and h is Planck's constant, the quantity 1/(4 π ε_0) (| e |^2)/(ℏ c) has…
If e is the electronic charge, c is the speed of light in free space and h is Planck's constant, the quantity $\displaystyle \frac{1}{4 \pi \varepsilon_0} \frac{|\mathrm{e}|^2}{\hbar c}$ has dimensions of :
Official answer
(3)
$\displaystyle \left[\mathrm{M}^0 \mathrm{~L}^0 \mathrm{~T}^0\right]$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.