Q113 / 180 · AIIMS 2001 · Physics
Which of the following physical quantities do not have same dimensions?
- Apressure and stress
- Correct answerBtension and surface tension
- Cstrain and angle
- Denergy and work.
Solution
Pressure and stress both have the dimensions of Force/area. Strain and angle are both dimensionsless. Energy and work have the same dimensions force $\times$ distance.
Tension and surface tension refer to two different physical quantities and their dimensions are different. Tension is a force and surface tension is force per unit length.
Hence, the correct answer is option: 'B'.