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Assertion (A): In a fluid, the rate of deformation is far more important than the total deformation it self.
Reason (R): A fluid continues to deform so long as the external forces are applied.
Reason (R): A fluid continues to deform so long as the external forces are applied.
- a)Both A and R are individually true and R is the correct explanation ofA.
- b)Both A and R are individually true but R is not the correct explanationof A.
- c)A is true but R is false.
- d)A is false but R is true.
Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): In a fluid, the rate of deformation is far more importa...
Ans. (a) This question is copied from Characteristics of fluid
1. It has no definite shape of its own, but conforms to the shape of the containing vessel.
2. Even a small amount of shear force exerted on a fluid will cause it to undergo a deformation which continues as long as
the force continues to be applied.
3. It is interesting to note that a solid suffers strain when subjected to shear forces whereas a fluid suffers Rate of Strain i.e. it flows under similar circumstances.
1. It has no definite shape of its own, but conforms to the shape of the containing vessel.
2. Even a small amount of shear force exerted on a fluid will cause it to undergo a deformation which continues as long as
the force continues to be applied.
3. It is interesting to note that a solid suffers strain when subjected to shear forces whereas a fluid suffers Rate of Strain i.e. it flows under similar circumstances.
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Assertion (A): In a fluid, the rate of deformation is far more importa...
Fluid Deformation
Assertion (A): In a fluid, the rate of deformation is far more important than the total deformation itself.
Reason (R): A fluid continues to deform so long as the external forces are applied.
Explanation:
Fluids are substances that flow and have no fixed shape. When external forces are applied to a fluid, it undergoes deformation. The deformation can be either elastic or plastic in nature. In elastic deformation, the fluid returns to its original shape once the external force is removed, whereas in plastic deformation, the fluid retains its deformed shape even after the external force is removed.
Rate of Deformation
The rate of deformation is defined as the change in deformation with respect to time. In fluids, the rate of deformation is far more important than the total deformation itself. This is because fluids are classified as Newtonian or non-Newtonian fluids based on their rate of deformation.
In Newtonian fluids, the rate of deformation is directly proportional to the applied shear stress. This means that the fluid behaves as a linear material and its viscosity remains constant. On the other hand, in non-Newtonian fluids, the rate of deformation is not directly proportional to the applied shear stress. The viscosity of non-Newtonian fluids changes with the rate of deformation.
Continuation of Deformation
A fluid continues to deform as long as the external forces are applied. This is because fluids do not have a fixed shape and can flow easily. When the external force is removed, the fluid may either return to its original shape or retain its deformed shape depending on the nature of deformation.
In conclusion, both the assertion and reason are individually true, and the reason is the correct explanation of the assertion. The rate of deformation is more important than the total deformation in fluids, and fluids continue to deform as long as external forces are applied.
Assertion (A): In a fluid, the rate of deformation is far more important than the total deformation itself.
Reason (R): A fluid continues to deform so long as the external forces are applied.
Explanation:
Fluids are substances that flow and have no fixed shape. When external forces are applied to a fluid, it undergoes deformation. The deformation can be either elastic or plastic in nature. In elastic deformation, the fluid returns to its original shape once the external force is removed, whereas in plastic deformation, the fluid retains its deformed shape even after the external force is removed.
Rate of Deformation
The rate of deformation is defined as the change in deformation with respect to time. In fluids, the rate of deformation is far more important than the total deformation itself. This is because fluids are classified as Newtonian or non-Newtonian fluids based on their rate of deformation.
In Newtonian fluids, the rate of deformation is directly proportional to the applied shear stress. This means that the fluid behaves as a linear material and its viscosity remains constant. On the other hand, in non-Newtonian fluids, the rate of deformation is not directly proportional to the applied shear stress. The viscosity of non-Newtonian fluids changes with the rate of deformation.
Continuation of Deformation
A fluid continues to deform as long as the external forces are applied. This is because fluids do not have a fixed shape and can flow easily. When the external force is removed, the fluid may either return to its original shape or retain its deformed shape depending on the nature of deformation.
In conclusion, both the assertion and reason are individually true, and the reason is the correct explanation of the assertion. The rate of deformation is more important than the total deformation in fluids, and fluids continue to deform as long as external forces are applied.
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Assertion (A): In a fluid, the rate of deformation is far more important than the total deformation it self.Reason (R): A fluid continues to deform so long as the external forces are applied.a)Both A and R are individually true and R is the correct explanation ofA.b)Both A and R are individually true but R is not the correct explanationof A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?
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