NEET · Physics · STD 11 - 1. units,dimensions and measurement
The quantities which have the same dimensions as those of solid angle are:
- A stress and angle
- B strain and arc
- C angular speed and stress
- D strain and angle
Answer & Solution
Correct Answer
(D) strain and angle
Step-by-step Solution
Detailed explanation
Solid angle \(d \Omega=\frac{d A}{r^2}\) has dimensions \(\left[\mathrm{M}^0\left\llcorner^0 \mathrm{~T}^0\right]\right.\) Strain \(=\frac{\Delta l}{l}\) has dimensions \(\left[\mathrm{M}^0 \mathrm{~L}^0 \mathrm{~T}^0\right]\)
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