EXPLANATION
Question: What are the dimensions of pressure?
- a) MLT⁻²
- b) ML⁻²T⁻²
- c) M²LT⁻²
- d) ML²T⁻¹
ANSWER: b) ML⁻²T⁻²
EXPLANATION:
The dimensions of pressure are b) ML⁻²T⁻². In the International System of Units (SI), pressure is defined as force per unit area. By breaking down the units, the force has dimensions of mass times acceleration (M * L * T⁻²), and the area has dimensions of length squared (L²). Therefore, the dimensions of pressure can be expressed as (M * L * T⁻²) / L², which simplifies to ML⁻²T⁻².
