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Minimum and maximum values of possion’s ratio for a metal lies between
Most metals have a Poisson's ratio in the range of 0 to 0.5. A value of 0 indicates no lateral contraction when stretched, and 0.5 represents a material that maintains constant volume under deformation. This is theoretically true for perfectly incompressible materials.
Most metals have a Poisson’s ratio in the range of 0 to 0.5. A value of 0 indicates no lateral contraction when stretched, and 0.5 represents a material that maintains constant volume under deformation. This is theoretically true for perfectly incompressible materials.
See lessThe work done per unit volume in deforming a body is given by
Work done per unit volume in deforming a body is given by the formula: Work done per unit volume = 1/2 × Stress × Strain This is derived from the area under stress-strain curve for elastic deformation, which forms a triangle. Click here for more: https://www.tiwariacademy.com/ncert-solutions/class-1Read more
Work done per unit volume in deforming a body is given by the formula:
Work done per unit volume = 1/2 × Stress × Strain
This is derived from the area under stress-strain curve for elastic deformation, which forms a triangle.
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If in a wire of Young’s modulus Y, longitudinal strain X is produced, then the value of potential energy stored in its unit volume will be
Formula: The potential energy per unit volume of a taut wire may be given as follows: Energy per unit volume = ½ × Stress × Strain For a wire: Tension = Stress Stress = Y × Strain Substituting Stress to above equation: Potential Energy per unit volume = 1/2 x (Yx X) × X= 0.5Yx² Click for more: hRead more
Formula:
The potential energy per unit volume of a taut wire may be given as follows:
Energy per unit volume = ½ × Stress × Strain
For a wire:
Tension = Stress
Stress = Y × Strain
Substituting Stress to above equation:
Potential Energy per unit volume = 1/2 x (Yx X) × X= 0.5Yx²
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What is the main feature of Rutherford’s atom model?
Rutherford's atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn't explain atomic stability or spectral lines. For more visit here: httpRead more
Rutherford’s atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn’t explain atomic stability or spectral lines.
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A thick copper rope of density 1.5 x 10³ kgm⁻³ and Young’s modulus 5 x 10⁶ Nm⁻², 8 m in length, its length due to its own weight is
The extension due to the weight of the rope can be found using the following formula: ΔL = (F L) / (A Y) Where: - F = Force due to weight = mg - L = Length of the rope = 8 m - A = Cross-sectional area of the rope - Y = Young's modulus - m = mass of the rope = density × volume - Volume = A × L AfterRead more
The extension due to the weight of the rope can be found using the following formula:
ΔL = (F L) / (A Y)
Where:
– F = Force due to weight = mg
– L = Length of the rope = 8 m
– A = Cross-sectional area of the rope
– Y = Young’s modulus
– m = mass of the rope = density × volume
– Volume = A × L
After computation, we get that the stretch is approximately:
ΔL = 9.6 x 10⁻⁵ m
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