An iron bar whose cross sectional area is `4cm^(2)` is heated from `0^(@)C` and `10^(@)C`. The force required to prevent the expansion of the rod is [`Y` of Iron `= 2 xx 10^(12) "dyne" // cm^(2)`
`alpha` of Iron `= 12 xx 10^(-6 //@) C`]

A uniform rod of cross-section 4 mm^(2) is heated from 0^(@)C " to "10^(@)C. The coefficient of linear expansion of the rod, prop=12xx10^(-6)//^(@)C and Young's modulus =10^(11)N//m^(2). The strain produced in the rod is

A uniform rod of cross-section 4 mm^(2) is heated from 0^(@)C " to "10^(@)C. The coefficient of linear expansion of the rod, prop=12xx10^(-6)//^(@)C and Young's modulus =10^(11)N//m^(2). The strain produced in the rod is

A steel rod of length 1 m and area of cross section 1 cm^(2) is heated from 0^(@)C to 200^(@)C without being allowed to extend or bend. Find the tension produced in the rod (Y=2.0 xx 10 ^(11) Nm ^(-1) , alpha = 10 ^(-5) ^(@)C ^(-1))

A bar of iron is 10 cm at 20^(@)C . At 19^(@)C it will be ( alpha of iron =11xx10^-6//^(@)C )

A bar of iron is 10 cm at 20^(@)C . At 19^(@)C it will be ( alpha of iron =11xx10.//^(@)C )

A metal rod has length of 100 cm and cross-section of 1.0 cm^(2) . By raising its temperture from 0^(@)C to 100^(@)C and holding it so that it is not permitted to expand or bend, the force developed is (Given Y=10^(12) dyne cm^(-2) and alpha=10^(-5) .^(@)C^(-1) )

A uniform metal rod of 2mm^(2) area of cross section is heated from 0^(@)C to 20^(@)C . The coefficient of linear expansion of the rod is 12xx10^(-6)//""^(@)C . Its Young's modulus of elasticity is 10^(11)N//m^(2) , then the energy stored per unit volume of rod is,