Thermal Expansion
PHXI11:THERMAL PROPERTIES OF MATTER

366738 A vertical column \(50\;cm\) long at \(50^\circ C\) balances another column of same liquid \(60\;cm\) long at \(100^\circ C.\) The coefficient of absolute expansion of the liquid is

1 \(0.005/^\circ C\)
2 \(0.0005/^\circ C\)
3 \(0.002/^\circ C\)
4 \(0.0002/^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366739 A circular disc made of iron is rotated about its axis at a constant velocity \(\omega\). Calculate the percentage change in the linear speed of a particle of the rim as the disc is slowly heated from \(20^\circ C\) to \(50^\circ C\) keeping the angular velocity constant. (Coefficient of linear expansion of iron \(\left. { = 1.2 \times {{10}^{ - 5}}/^\circ C} \right)\).

1 \(3.6 \times 10^{-2}\)
2 \(3.2 \times 10^{-1}\)
3 \(1.6 \times 10^{-2}\)
4 \(2.4 \times 10^{-2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366740 Three rods of equal length \(l\) are joined to form an equilateral triangle \(P Q R\). \(O\) is the mid point of \(P Q\). Distance \(O R\) remains same for small change in temperature. Coefficient of linear expansion for \(P R\) ad \(R Q\) is same, i.e., \(\alpha_{2}\) but that for \(P Q\) is \(\alpha_{1}\). Then
supporting img

1 \(\alpha_{2}=4 \alpha_{1}\)
2 \(\alpha_{2}=3 \alpha_{1}\)
3 \(\alpha_{1}=4 \alpha_{2}\)
4 \(\alpha_{1}=3 \alpha_{2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366741 A thin bimetallic strip is rigidly attached on its bottom surface as shown. Coefficient of linear expansion of strip A is more than strip B. If temperature of system is decreased, find correct option among the following
supporting img

1 Bends towards left
2 Bends towards right
3 Neither bends nor shrinks
4 Shrinks but does not bends
PHXI11:THERMAL PROPERTIES OF MATTER

366738 A vertical column \(50\;cm\) long at \(50^\circ C\) balances another column of same liquid \(60\;cm\) long at \(100^\circ C.\) The coefficient of absolute expansion of the liquid is

1 \(0.005/^\circ C\)
2 \(0.0005/^\circ C\)
3 \(0.002/^\circ C\)
4 \(0.0002/^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366739 A circular disc made of iron is rotated about its axis at a constant velocity \(\omega\). Calculate the percentage change in the linear speed of a particle of the rim as the disc is slowly heated from \(20^\circ C\) to \(50^\circ C\) keeping the angular velocity constant. (Coefficient of linear expansion of iron \(\left. { = 1.2 \times {{10}^{ - 5}}/^\circ C} \right)\).

1 \(3.6 \times 10^{-2}\)
2 \(3.2 \times 10^{-1}\)
3 \(1.6 \times 10^{-2}\)
4 \(2.4 \times 10^{-2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366740 Three rods of equal length \(l\) are joined to form an equilateral triangle \(P Q R\). \(O\) is the mid point of \(P Q\). Distance \(O R\) remains same for small change in temperature. Coefficient of linear expansion for \(P R\) ad \(R Q\) is same, i.e., \(\alpha_{2}\) but that for \(P Q\) is \(\alpha_{1}\). Then
supporting img

1 \(\alpha_{2}=4 \alpha_{1}\)
2 \(\alpha_{2}=3 \alpha_{1}\)
3 \(\alpha_{1}=4 \alpha_{2}\)
4 \(\alpha_{1}=3 \alpha_{2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366741 A thin bimetallic strip is rigidly attached on its bottom surface as shown. Coefficient of linear expansion of strip A is more than strip B. If temperature of system is decreased, find correct option among the following
supporting img

1 Bends towards left
2 Bends towards right
3 Neither bends nor shrinks
4 Shrinks but does not bends
PHXI11:THERMAL PROPERTIES OF MATTER

366738 A vertical column \(50\;cm\) long at \(50^\circ C\) balances another column of same liquid \(60\;cm\) long at \(100^\circ C.\) The coefficient of absolute expansion of the liquid is

1 \(0.005/^\circ C\)
2 \(0.0005/^\circ C\)
3 \(0.002/^\circ C\)
4 \(0.0002/^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366739 A circular disc made of iron is rotated about its axis at a constant velocity \(\omega\). Calculate the percentage change in the linear speed of a particle of the rim as the disc is slowly heated from \(20^\circ C\) to \(50^\circ C\) keeping the angular velocity constant. (Coefficient of linear expansion of iron \(\left. { = 1.2 \times {{10}^{ - 5}}/^\circ C} \right)\).

1 \(3.6 \times 10^{-2}\)
2 \(3.2 \times 10^{-1}\)
3 \(1.6 \times 10^{-2}\)
4 \(2.4 \times 10^{-2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366740 Three rods of equal length \(l\) are joined to form an equilateral triangle \(P Q R\). \(O\) is the mid point of \(P Q\). Distance \(O R\) remains same for small change in temperature. Coefficient of linear expansion for \(P R\) ad \(R Q\) is same, i.e., \(\alpha_{2}\) but that for \(P Q\) is \(\alpha_{1}\). Then
supporting img

1 \(\alpha_{2}=4 \alpha_{1}\)
2 \(\alpha_{2}=3 \alpha_{1}\)
3 \(\alpha_{1}=4 \alpha_{2}\)
4 \(\alpha_{1}=3 \alpha_{2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366741 A thin bimetallic strip is rigidly attached on its bottom surface as shown. Coefficient of linear expansion of strip A is more than strip B. If temperature of system is decreased, find correct option among the following
supporting img

1 Bends towards left
2 Bends towards right
3 Neither bends nor shrinks
4 Shrinks but does not bends
PHXI11:THERMAL PROPERTIES OF MATTER

366738 A vertical column \(50\;cm\) long at \(50^\circ C\) balances another column of same liquid \(60\;cm\) long at \(100^\circ C.\) The coefficient of absolute expansion of the liquid is

1 \(0.005/^\circ C\)
2 \(0.0005/^\circ C\)
3 \(0.002/^\circ C\)
4 \(0.0002/^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366739 A circular disc made of iron is rotated about its axis at a constant velocity \(\omega\). Calculate the percentage change in the linear speed of a particle of the rim as the disc is slowly heated from \(20^\circ C\) to \(50^\circ C\) keeping the angular velocity constant. (Coefficient of linear expansion of iron \(\left. { = 1.2 \times {{10}^{ - 5}}/^\circ C} \right)\).

1 \(3.6 \times 10^{-2}\)
2 \(3.2 \times 10^{-1}\)
3 \(1.6 \times 10^{-2}\)
4 \(2.4 \times 10^{-2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366740 Three rods of equal length \(l\) are joined to form an equilateral triangle \(P Q R\). \(O\) is the mid point of \(P Q\). Distance \(O R\) remains same for small change in temperature. Coefficient of linear expansion for \(P R\) ad \(R Q\) is same, i.e., \(\alpha_{2}\) but that for \(P Q\) is \(\alpha_{1}\). Then
supporting img

1 \(\alpha_{2}=4 \alpha_{1}\)
2 \(\alpha_{2}=3 \alpha_{1}\)
3 \(\alpha_{1}=4 \alpha_{2}\)
4 \(\alpha_{1}=3 \alpha_{2}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366741 A thin bimetallic strip is rigidly attached on its bottom surface as shown. Coefficient of linear expansion of strip A is more than strip B. If temperature of system is decreased, find correct option among the following
supporting img

1 Bends towards left
2 Bends towards right
3 Neither bends nor shrinks
4 Shrinks but does not bends