01. Thermal Expansion (Linear, Area and Volume Expansion)
Thermal Properties of Matter

146590 Two uniform brass rods $A$ and $B$ of length $l$ and $2 l$ and radii $2 \mathrm{r}$ and $\mathrm{r}$ respectively are heated to the same temperature. The ratio of the increase in the volume of $A$ to that of $B$ is

1 $1: 1$
2 $1: 2$
3 $2: 1$
4 $1: 4$
Thermal Properties of Matter

146591 A thin copper wire of length $L$ increases its length by $1 \%$ when heated from temperature $T_{1}$ to $T_{2}$. What is the percentage change in area when a thin copper plate having dimensions $2 \mathrm{~L}$ $\times L$ is heated from $T_{1}$ to $T_{2}$ ?

1 $0.5 \%$
2 $1 \%$
3 $2 \%$
4 $4 \%$
Thermal Properties of Matter

146592 The densities of a certain material at $10^{\circ} \mathrm{C}$ and $40^{\circ} \mathrm{C}$ are $2.5 \mathrm{gm} / \mathrm{cm}^{3}$ and $2.49 \mathrm{gm} / \mathrm{cm}^{3}$, respectively. The average value of the coefficient of linear expansion of the material in this temperature range is

1 $4.0 \times 10^{-7} /{ }^{\circ} \mathrm{C}$
2 $4.0 \times 10^{-6} /{ }^{\circ} \mathrm{C}$
3 $4.0 \times 10^{-5} /{ }^{\circ} \mathrm{C}$
4 $2.0 \times 10^{-3} /{ }^{\circ} \mathrm{C}$
Thermal Properties of Matter

146593 The coefficient of thermal expansion of volume for a gas at constant pressure is equal to

1 $1 / \mathrm{T}$
2 $1 / \mathrm{P}$
3 $\mathrm{T}$
4 $\mathrm{P}$
Thermal Properties of Matter

146590 Two uniform brass rods $A$ and $B$ of length $l$ and $2 l$ and radii $2 \mathrm{r}$ and $\mathrm{r}$ respectively are heated to the same temperature. The ratio of the increase in the volume of $A$ to that of $B$ is

1 $1: 1$
2 $1: 2$
3 $2: 1$
4 $1: 4$
Thermal Properties of Matter

146591 A thin copper wire of length $L$ increases its length by $1 \%$ when heated from temperature $T_{1}$ to $T_{2}$. What is the percentage change in area when a thin copper plate having dimensions $2 \mathrm{~L}$ $\times L$ is heated from $T_{1}$ to $T_{2}$ ?

1 $0.5 \%$
2 $1 \%$
3 $2 \%$
4 $4 \%$
Thermal Properties of Matter

146592 The densities of a certain material at $10^{\circ} \mathrm{C}$ and $40^{\circ} \mathrm{C}$ are $2.5 \mathrm{gm} / \mathrm{cm}^{3}$ and $2.49 \mathrm{gm} / \mathrm{cm}^{3}$, respectively. The average value of the coefficient of linear expansion of the material in this temperature range is

1 $4.0 \times 10^{-7} /{ }^{\circ} \mathrm{C}$
2 $4.0 \times 10^{-6} /{ }^{\circ} \mathrm{C}$
3 $4.0 \times 10^{-5} /{ }^{\circ} \mathrm{C}$
4 $2.0 \times 10^{-3} /{ }^{\circ} \mathrm{C}$
Thermal Properties of Matter

146593 The coefficient of thermal expansion of volume for a gas at constant pressure is equal to

1 $1 / \mathrm{T}$
2 $1 / \mathrm{P}$
3 $\mathrm{T}$
4 $\mathrm{P}$
Thermal Properties of Matter

146590 Two uniform brass rods $A$ and $B$ of length $l$ and $2 l$ and radii $2 \mathrm{r}$ and $\mathrm{r}$ respectively are heated to the same temperature. The ratio of the increase in the volume of $A$ to that of $B$ is

1 $1: 1$
2 $1: 2$
3 $2: 1$
4 $1: 4$
Thermal Properties of Matter

146591 A thin copper wire of length $L$ increases its length by $1 \%$ when heated from temperature $T_{1}$ to $T_{2}$. What is the percentage change in area when a thin copper plate having dimensions $2 \mathrm{~L}$ $\times L$ is heated from $T_{1}$ to $T_{2}$ ?

1 $0.5 \%$
2 $1 \%$
3 $2 \%$
4 $4 \%$
Thermal Properties of Matter

146592 The densities of a certain material at $10^{\circ} \mathrm{C}$ and $40^{\circ} \mathrm{C}$ are $2.5 \mathrm{gm} / \mathrm{cm}^{3}$ and $2.49 \mathrm{gm} / \mathrm{cm}^{3}$, respectively. The average value of the coefficient of linear expansion of the material in this temperature range is

1 $4.0 \times 10^{-7} /{ }^{\circ} \mathrm{C}$
2 $4.0 \times 10^{-6} /{ }^{\circ} \mathrm{C}$
3 $4.0 \times 10^{-5} /{ }^{\circ} \mathrm{C}$
4 $2.0 \times 10^{-3} /{ }^{\circ} \mathrm{C}$
Thermal Properties of Matter

146593 The coefficient of thermal expansion of volume for a gas at constant pressure is equal to

1 $1 / \mathrm{T}$
2 $1 / \mathrm{P}$
3 $\mathrm{T}$
4 $\mathrm{P}$
Thermal Properties of Matter

146590 Two uniform brass rods $A$ and $B$ of length $l$ and $2 l$ and radii $2 \mathrm{r}$ and $\mathrm{r}$ respectively are heated to the same temperature. The ratio of the increase in the volume of $A$ to that of $B$ is

1 $1: 1$
2 $1: 2$
3 $2: 1$
4 $1: 4$
Thermal Properties of Matter

146591 A thin copper wire of length $L$ increases its length by $1 \%$ when heated from temperature $T_{1}$ to $T_{2}$. What is the percentage change in area when a thin copper plate having dimensions $2 \mathrm{~L}$ $\times L$ is heated from $T_{1}$ to $T_{2}$ ?

1 $0.5 \%$
2 $1 \%$
3 $2 \%$
4 $4 \%$
Thermal Properties of Matter

146592 The densities of a certain material at $10^{\circ} \mathrm{C}$ and $40^{\circ} \mathrm{C}$ are $2.5 \mathrm{gm} / \mathrm{cm}^{3}$ and $2.49 \mathrm{gm} / \mathrm{cm}^{3}$, respectively. The average value of the coefficient of linear expansion of the material in this temperature range is

1 $4.0 \times 10^{-7} /{ }^{\circ} \mathrm{C}$
2 $4.0 \times 10^{-6} /{ }^{\circ} \mathrm{C}$
3 $4.0 \times 10^{-5} /{ }^{\circ} \mathrm{C}$
4 $2.0 \times 10^{-3} /{ }^{\circ} \mathrm{C}$
Thermal Properties of Matter

146593 The coefficient of thermal expansion of volume for a gas at constant pressure is equal to

1 $1 / \mathrm{T}$
2 $1 / \mathrm{P}$
3 $\mathrm{T}$
4 $\mathrm{P}$