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

146564 A rectangular plate of glass has length and breadth $0.3 \mathrm{~m}$ and $0.2 \mathrm{~m}$ respectively. The glass plate area is changed by $2.16 \times 10^{-5} \mathrm{~m}^{2}$, if its temperature is increased by $20 \mathrm{~K}$. The coefficient of linear expansion for the glass is

1 $8.8 \times 10^{-6} / \mathrm{K}$
2 $9.0 \times 10^{-6} / \mathrm{K}$
3 $9.2 \times 10^{-6} / \mathrm{K}$
4 $9.4 \times 10^{-6} / \mathrm{K}$
Thermal Properties of Matter

146565 When operated at $240 \mathrm{~V}$, a current of $10 \mathrm{~A}$ was seen flowing through a heating wire and it's temperature reaches to $1000{ }^{\circ} \mathrm{C}$. If the temperature coefficient of the wire is $1 \times 10^{-3} /$ ${ }^{\circ} \mathrm{C}$, its resistance at a temperature of $0{ }^{\circ} \mathrm{C}$ is

1 $2 \Omega$
2 $4 \Omega$
3 $12 \Omega$
4 $8 \Omega$
Thermal Properties of Matter

146566 A metal block has a linear expansion coefficient of $8 \times 10^{-5} /{ }^{\circ} \mathrm{C}$ and its density at $20{ }^{\circ} \mathrm{C}$ is $11 \mathrm{~g} / \mathrm{cm}^{3}$. The approximate temperature at which its density becomes $10 \mathrm{~g} / \mathrm{cm}^{3}$ will be

1 $220^{\circ} \mathrm{C}$
2 $437^{\circ} \mathrm{C}$
3 $328^{\circ} \mathrm{C}$
4 $373^{\circ} \mathrm{C}$
Thermal Properties of Matter

146567 The area measured on the surface of a solid body of coefficient of linear expansion $\alpha$ is $A_{0}$ at some initial temperature. If the temperature changes by $\Delta T$, the approximate change in area, $\Delta \mathbf{A}$ is

1 $\alpha \mathrm{A}_{0} \Delta \mathrm{T}$
2 $\left(\alpha \mathrm{A}_{0} \Delta \mathrm{T}\right) / 2$
3 $2 \alpha \mathrm{A}_{0} \Delta \mathrm{T}$
4 $\frac{2 \alpha \mathrm{A}_{0}}{\Delta \mathrm{T}}$
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Thermal Properties of Matter

146564 A rectangular plate of glass has length and breadth $0.3 \mathrm{~m}$ and $0.2 \mathrm{~m}$ respectively. The glass plate area is changed by $2.16 \times 10^{-5} \mathrm{~m}^{2}$, if its temperature is increased by $20 \mathrm{~K}$. The coefficient of linear expansion for the glass is

1 $8.8 \times 10^{-6} / \mathrm{K}$
2 $9.0 \times 10^{-6} / \mathrm{K}$
3 $9.2 \times 10^{-6} / \mathrm{K}$
4 $9.4 \times 10^{-6} / \mathrm{K}$
Thermal Properties of Matter

146565 When operated at $240 \mathrm{~V}$, a current of $10 \mathrm{~A}$ was seen flowing through a heating wire and it's temperature reaches to $1000{ }^{\circ} \mathrm{C}$. If the temperature coefficient of the wire is $1 \times 10^{-3} /$ ${ }^{\circ} \mathrm{C}$, its resistance at a temperature of $0{ }^{\circ} \mathrm{C}$ is

1 $2 \Omega$
2 $4 \Omega$
3 $12 \Omega$
4 $8 \Omega$
Thermal Properties of Matter

146566 A metal block has a linear expansion coefficient of $8 \times 10^{-5} /{ }^{\circ} \mathrm{C}$ and its density at $20{ }^{\circ} \mathrm{C}$ is $11 \mathrm{~g} / \mathrm{cm}^{3}$. The approximate temperature at which its density becomes $10 \mathrm{~g} / \mathrm{cm}^{3}$ will be

1 $220^{\circ} \mathrm{C}$
2 $437^{\circ} \mathrm{C}$
3 $328^{\circ} \mathrm{C}$
4 $373^{\circ} \mathrm{C}$
Thermal Properties of Matter

146567 The area measured on the surface of a solid body of coefficient of linear expansion $\alpha$ is $A_{0}$ at some initial temperature. If the temperature changes by $\Delta T$, the approximate change in area, $\Delta \mathbf{A}$ is

1 $\alpha \mathrm{A}_{0} \Delta \mathrm{T}$
2 $\left(\alpha \mathrm{A}_{0} \Delta \mathrm{T}\right) / 2$
3 $2 \alpha \mathrm{A}_{0} \Delta \mathrm{T}$
4 $\frac{2 \alpha \mathrm{A}_{0}}{\Delta \mathrm{T}}$
Thermal Properties of Matter

146564 A rectangular plate of glass has length and breadth $0.3 \mathrm{~m}$ and $0.2 \mathrm{~m}$ respectively. The glass plate area is changed by $2.16 \times 10^{-5} \mathrm{~m}^{2}$, if its temperature is increased by $20 \mathrm{~K}$. The coefficient of linear expansion for the glass is

1 $8.8 \times 10^{-6} / \mathrm{K}$
2 $9.0 \times 10^{-6} / \mathrm{K}$
3 $9.2 \times 10^{-6} / \mathrm{K}$
4 $9.4 \times 10^{-6} / \mathrm{K}$
Thermal Properties of Matter

146565 When operated at $240 \mathrm{~V}$, a current of $10 \mathrm{~A}$ was seen flowing through a heating wire and it's temperature reaches to $1000{ }^{\circ} \mathrm{C}$. If the temperature coefficient of the wire is $1 \times 10^{-3} /$ ${ }^{\circ} \mathrm{C}$, its resistance at a temperature of $0{ }^{\circ} \mathrm{C}$ is

1 $2 \Omega$
2 $4 \Omega$
3 $12 \Omega$
4 $8 \Omega$
Thermal Properties of Matter

146566 A metal block has a linear expansion coefficient of $8 \times 10^{-5} /{ }^{\circ} \mathrm{C}$ and its density at $20{ }^{\circ} \mathrm{C}$ is $11 \mathrm{~g} / \mathrm{cm}^{3}$. The approximate temperature at which its density becomes $10 \mathrm{~g} / \mathrm{cm}^{3}$ will be

1 $220^{\circ} \mathrm{C}$
2 $437^{\circ} \mathrm{C}$
3 $328^{\circ} \mathrm{C}$
4 $373^{\circ} \mathrm{C}$
Thermal Properties of Matter

146567 The area measured on the surface of a solid body of coefficient of linear expansion $\alpha$ is $A_{0}$ at some initial temperature. If the temperature changes by $\Delta T$, the approximate change in area, $\Delta \mathbf{A}$ is

1 $\alpha \mathrm{A}_{0} \Delta \mathrm{T}$
2 $\left(\alpha \mathrm{A}_{0} \Delta \mathrm{T}\right) / 2$
3 $2 \alpha \mathrm{A}_{0} \Delta \mathrm{T}$
4 $\frac{2 \alpha \mathrm{A}_{0}}{\Delta \mathrm{T}}$
Thermal Properties of Matter

146564 A rectangular plate of glass has length and breadth $0.3 \mathrm{~m}$ and $0.2 \mathrm{~m}$ respectively. The glass plate area is changed by $2.16 \times 10^{-5} \mathrm{~m}^{2}$, if its temperature is increased by $20 \mathrm{~K}$. The coefficient of linear expansion for the glass is

1 $8.8 \times 10^{-6} / \mathrm{K}$
2 $9.0 \times 10^{-6} / \mathrm{K}$
3 $9.2 \times 10^{-6} / \mathrm{K}$
4 $9.4 \times 10^{-6} / \mathrm{K}$
Thermal Properties of Matter

146565 When operated at $240 \mathrm{~V}$, a current of $10 \mathrm{~A}$ was seen flowing through a heating wire and it's temperature reaches to $1000{ }^{\circ} \mathrm{C}$. If the temperature coefficient of the wire is $1 \times 10^{-3} /$ ${ }^{\circ} \mathrm{C}$, its resistance at a temperature of $0{ }^{\circ} \mathrm{C}$ is

1 $2 \Omega$
2 $4 \Omega$
3 $12 \Omega$
4 $8 \Omega$
Thermal Properties of Matter

146566 A metal block has a linear expansion coefficient of $8 \times 10^{-5} /{ }^{\circ} \mathrm{C}$ and its density at $20{ }^{\circ} \mathrm{C}$ is $11 \mathrm{~g} / \mathrm{cm}^{3}$. The approximate temperature at which its density becomes $10 \mathrm{~g} / \mathrm{cm}^{3}$ will be

1 $220^{\circ} \mathrm{C}$
2 $437^{\circ} \mathrm{C}$
3 $328^{\circ} \mathrm{C}$
4 $373^{\circ} \mathrm{C}$
Thermal Properties of Matter

146567 The area measured on the surface of a solid body of coefficient of linear expansion $\alpha$ is $A_{0}$ at some initial temperature. If the temperature changes by $\Delta T$, the approximate change in area, $\Delta \mathbf{A}$ is

1 $\alpha \mathrm{A}_{0} \Delta \mathrm{T}$
2 $\left(\alpha \mathrm{A}_{0} \Delta \mathrm{T}\right) / 2$
3 $2 \alpha \mathrm{A}_{0} \Delta \mathrm{T}$
4 $\frac{2 \alpha \mathrm{A}_{0}}{\Delta \mathrm{T}}$