PhysicsScalar QuantityNCTB পদার্থবিজ্ঞান অধ্যায় ৫ (পদার্থের অবস্থা ও চাপ)
Pressure
Bengali: চাপ•Pronunciation: প্রেশার•Symbol: P
Standard Definition:
The perpendicular compressive force applied per unit surface area of an object.
📐 Mathematical Equation, Units & Dimensions
Defining Mathematical Equation
Standard SI Unit
Pa (Pascal) or N/m^2($Pa$ (প্যাসকেল) বা $N/m^2$)
Dimensional Analysis
CGS Unit
Ba (ব্যারি)
📖 Physical Concept & Comprehensive Explanation
Pressure is inversely proportional to contact area for a constant force. In static fluids, pressure at depth h is given by P = h*rho*g, depending exclusively on depth, fluid density, and gravitational acceleration.
🎯 High-Yield Revision Points
- ✓Pressure = Force / Area (P = F/A).
- ✓Hydrostatic pressure at depth h is P = h*rho*g.
- ✓SI unit is Pascal (Pa); dimension is [M L^-1 T^-2].
Use Online Solver for Pressure
Compute step-by-step solutions, verify formulas, and plot interactive diagrams on biggan.me.
❓ Frequently Asked Exam Questions (FAQ)
Common questions in board and competitive entrance examinations
Q1: Define 1 Pascal of pressure.
One Pascal is the pressure exerted by a normal force of 1 Newton uniformly over an area of 1 square meter.