Q 11-01-008NEETNEET 2024Top questionEasy
The quantities which have the same dimensions as those of solid angle are :
Answer: (C) strain and angle
Solid angle (area / radius$^2$) is dimensionless.
Strain (change in length / length) and plane angle (arc / radius) are also dimensionless.
Arc has dimension $[\mathrm{L}]$, angular speed $[\mathrm{T^{-1}}]$ and stress $[\mathrm{ML^{-1}T^{-2}}]$, so the other options are ruled out.
Solution by Sreeraj P, M.Sc Physics