If e is the electronic charge, c is the speed of light in free space and h is Planck's constant, the…

1. $\left[{\mathrm{MLT}}^0\right]$
2. $\left[{\mathrm{M}}^0 {\mathrm{L}}^0 {\mathrm{T}}^0\right]$
3. $\left[{\mathrm{MLT}}^{-1}\right]$
4. $\left[{\mathrm{LC}}^{-1}\right]$

Solution

Asked in: JEE Main 2021 (25 Feb Shift 2)

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