Mechanical Properties of Solids

Related Questions

• How much force is required to produce an increase of 0.2% in the length of a brass wire of diameter 0.6 mm (Young’s modulus for brass = $0.9\times {{10}^{11}}N/{{m}^{2}}$)

  ---

• If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is $1\times {{10}^{3}}\,kg/{{m}^{3}}$ and $g=10\,m/{{s}^{2}}$, then the volume elasticity in $N/{{m}^{2}}$ will be

  ---

• 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 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

  ---