Answer
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Hint: To solve this question, we are first going to give a definition for the elasticity of a substance and also the different types of the elasticities present in the different substances. Then the impact of adding the impurities to it on the elasticity is discussed considering the elasticity nature of the impurity.
Complete step-by-step solution:
Elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. There are three types of modulus of elasticity, Young's modulus, Shear modulus, and Bulk modulus.
The process of adding impurities to a substance has an impact on the elasticity of the substance. Now, the impact depends upon the elasticity of the impurity to be added. If the elasticity of the impurity that has been added is more than that of the substance to which the impurity is added, then the elasticity of the substance increases.
i.e. if \[{\varepsilon _i} < {\varepsilon _s}\]
Then, \[{\varepsilon _s}\]increases
On the other hand, if the elasticity of the impurity that is being added to the substance is less than the latter, then the elasticity of the substance decreases.
i.e. if \[{\varepsilon _i} > {\varepsilon _s}\]
Then, \[{\varepsilon _s}\]decreases.
Note: It is important to note that other than the addition of the impurities in order to vary the elasticity of the substance, the temperature of the substance can also be varied. Now as the temperature of the substance is increased, then the elasticity of the substance decreases and vice versa.
Complete step-by-step solution:
Elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. There are three types of modulus of elasticity, Young's modulus, Shear modulus, and Bulk modulus.
The process of adding impurities to a substance has an impact on the elasticity of the substance. Now, the impact depends upon the elasticity of the impurity to be added. If the elasticity of the impurity that has been added is more than that of the substance to which the impurity is added, then the elasticity of the substance increases.
i.e. if \[{\varepsilon _i} < {\varepsilon _s}\]
Then, \[{\varepsilon _s}\]increases
On the other hand, if the elasticity of the impurity that is being added to the substance is less than the latter, then the elasticity of the substance decreases.
i.e. if \[{\varepsilon _i} > {\varepsilon _s}\]
Then, \[{\varepsilon _s}\]decreases.
Note: It is important to note that other than the addition of the impurities in order to vary the elasticity of the substance, the temperature of the substance can also be varied. Now as the temperature of the substance is increased, then the elasticity of the substance decreases and vice versa.
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