Questions in Mechanical Properties of Solids

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The ratio of two specific heats of gas ${{C}_{p}}/{{C}_{v}}$ for argon is $1.6$ and for hydrogen is $1.4$. Adiabatic elasticity of argon at pressure $P$ is $E$. Adiabatic elasticity of hydrogen will also be equal to $E$ at the pressure
The relation between $\gamma ,\,\eta $ and $K$ for a elastic material is
A fixed volume of iron is drawn into a wire of length $L$. The extension x produced in this wire by a constant force $F$ is proportional to
A wire of cross-sectional area $3\,m{{m}^{2}}$ is first stretched between two fixed points at a temperature of $20°C$. Determine the tension when the temperature falls to $10°C$. Coefficient of linear expansion $\alpha ={{10}^{-5}}{}^\circ {{C}^{-1}}$ and $Y=2\times {{10}^{11}}\,N/{{m}^{2}}$
To keep constant time, watches are fitted with balance wheel made of
A wire is stretched by $0.01 m$ by a certain force $F$. Another wire of same material whose diameter and length are double to the original wire is stretched by the same force. Then its elongation will be
The possible value of Poisson's ratio is
The coefficient of linear expansion of brass and steel are ${{\alpha }_{1}}$ and ${{\alpha }_{2}}$. If we take a brass rod of length ${{l}_{1}}$ and steel rod of length ${{l}_{2}}$ at 0°C, their difference in length $({{l}_{2}}-{{l}_{1}})$ will remain the same at a temperature if
A rod is fixed between two points at 20°C. The coefficient of linear expansion of material of rod is $1.1\times {{10}^{-5}}/{}^\circ C$ and Young's modulus is $1.2\times {{10}^{11}}\,N/m$. Find the stress developed in the rod if temperature of rod becomes 10°C
The extension of a wire by the application of load is 3 mm. The extension in a wire of the same material and length but half the radius by the same load is

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