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FAQs on Irodov Solutions: Elastic Deformations of a Solid Body (1.6) - Physics Class 12

1. What is elastic deformation of a solid body?
Ans. Elastic deformation refers to the reversible change in shape or size of a solid body when a force is applied to it. In this type of deformation, the body returns to its original shape and size once the force is removed.
2. How is elastic deformation different from plastic deformation?
Ans. Elastic deformation is reversible, meaning the body returns to its original shape and size after the force is removed. On the other hand, plastic deformation is irreversible, and the body retains its deformed shape even after the force is removed.
3. What factors affect the extent of elastic deformation in a solid body?
Ans. The extent of elastic deformation in a solid body is influenced by factors such as the material's elasticity, the magnitude and direction of the applied force, and the body's geometry and dimensions. Materials with higher elasticity will experience greater elastic deformation.
4. Can a solid body undergo elastic deformation if it is subjected to a compressive force?
Ans. Yes, a solid body can undergo elastic deformation when subjected to a compressive force. In this case, the body will decrease in size in the direction of the force and then return to its original size once the force is removed.
5. How can we calculate the amount of elastic deformation in a solid body?
Ans. The amount of elastic deformation in a solid body can be calculated using Hooke's Law, which states that the deformation is directly proportional to the applied force. The equation is given by: deformation = (force * length) / (cross-sectional area * modulus of elasticity).
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