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Strain in Physics (Types of Strain in Physics) Strain in Physics (Types of Strain in Physics) The ratio of change in dimension to the original dimension is called strain. Strain formula (Strain in Physics) Strain = change in size of the object / initial size of the object It is a unitless and dimensionless…
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Elasticity Elasticity Elasticity is the property of matter by virtue of which a body tends to regain its original shape and size after the removal of deforming forces. Some important terms related to elasticity Deforming Force :- The external force which try to change the length, volume or shape of a body is called deforming…
Rigid Body A rigid body is an idealization of a body in which deformation is zero no matter how large an external deforming force is applied on it. We can define a rigid body as an object in which the relative positions of its constituent particles remains unchanged when external deforming forces are applied to…
Error Analysis Error(Error Analysis) :- The result of every measurement by any measuring instrument contains some uncertainty. This uncertainty is called error. True Value and Measured Value :- To understand the concept of errors in measurement, one should know the two terms, “true value” and “measured value”. The true value is impossible to find…
Bimetallic Strip We know that every metal expands when it is heated, this property of materials is called thermal expansion. Now the amount of expansion is different for different materials and is determined by a property called coefficient of thermal expansion(γ). The materials having higher coefficient of thermal expansion than others, expands more…
Effect of Temperature on Upthrust In this article we are going to discuss about the Effect of Temperature on Upthrust as the temperature of a body which is changed. We know that whenever a body is immersed in a liquid, partially or completely, its weight appears to be less in comparison to its weight…
Thermal Stress in a Rod fixed between two rigid supports In this article we are going to discuss about thermal stress produced in a rod which is fixed between two rigid supports. Consider a rod of length L0 with Young’s modulus Y is fixed between two rigid supports. Let it is heated for…
Variation of Density with temperature In this article we are going to discuss about Variation of Density with temperature of solids and liquids. We know that on heating a substance, its volume increases but mass remains the same. Hence we conclude that :- Heating of bodies is accompanied by an increase in volume…
Thermal Expansion of Gases All three states of matter (solid, liquid and gas) expand when heated, but thermal expansion of gases is much greater than solids or liquids, i.e., on heating, gases expands much greater than solids or liquids. But change in volume of gases not only depends on change in temperature but…
Thermal Expansion in liquids Thermal expansion in liquids is similar to that of volume expansion in solids and is governed by the similar relationship :- V = V0( 1 + γΔT ) The bonds between separate molecules in liquids are usually less tight than solids, hence they expand more than solids for…
