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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…
Error in Metal Scale Reading Due To Expansion and Contraction Error in Metal Scale Reading Due To Expansion and Contraction :- In this article we are going to discuss about error in metal scale reading due to change in temperature. Suppose we have a metal scale. As we know, with rise and fall…
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Effect of Temperature on the Time Period of a Simple Pendulum In this article we are going to discuss the effect of temperature on the time period of a simple pendulum, i.e., how the time read by a pendulum clock is affected by the rise and fall in temperature. A pendulum clock consists of…
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Numerical on Thermal Expansion Q1. A metal rod A of length 25 cm expands by 0.05 cm, when its temperature is raised from 0°C to 100°C. Another rod B of a different metal of length 40 cm expands by 0.04 cm for the same rise in temperature. A third rod C of length 50…
Relation Between alpha beta and gamma We have already studied about alpha beta and gamma in thermal expansion. In this article we are going to discuss that, what is the relation between alpha beta and gamma in physics? Relation Between alpha beta and gamma for isotropic solids Suppose that we have a cube…
