This modulus quantifies the compressibility of a material.
The CBSE syllabus for 2024-2025 includes Chapter 8 “Mechanical Properties of Solids” from the Class 11 NCERT Physics textbook. This chapter introduces key concepts such as stress, strain, elasticity, Young’s modulus, bulk modulus, shear modulus and Poisson’s ratio. It explains how solids respond to different forces and the factors that affect their mechanical properties. Multiple-choice questions are used to test the understanding of these principles like Hooke’s Law and the stress-strain relationship. These concepts are essential for academic learning and practical applications in fields like engineering and material science.
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The modulus used to study the volume change under uniform pressure is called the Bulk Modulus (K).
It is defined as the ratio of the change in pressure to the relative change in volume. The Bulk Modulus quantifies how incompressible a substance is under uniform pressure. The higher the bulk modulus, the less compressible the material is.
Mathematically, it is given by:
K = -V * (dP/dV)
Where:
K = Bulk Modulus
V = Initial volume
dP = Change in pressure
dV = Change in volume
This question related to Chapter 8 physics Class 11th NCERT. From the Chapter 8. Mechanical Properties of Solids. Give answer according to your understanding.
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