2021 Easy
Single Choice
Marks: 4.00 / −1.00
The dimensional formula of pressure is:
- A. \( [ML^{-1}T^{-2}] \)
- B. \( [MLT^{-2}] \)
- C. \( [ML^2T^{-1}] \)
- D. \( [M^0L^0T^0] \)
Correct Option:
- A. \( [ML^{-1}T^{-2}] \) ✓ Correct
- B. \( [MLT^{-2}] \)
- C. \( [ML^2T^{-1}] \)
- D. \( [M^0L^0T^0] \)
Hint: Pressure = Force / Area. Derive the dimension from there.
Solution:
Pressure \( = \frac{F}{A} \), \( [F] = [MLT^{-2}] \), \( [A] = [L^2] \). So \( [P] = [ML^{-1}T^{-2}] \).
dimensions
pressure