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

146626 The thermal conductivity of copper is 4 times that of brass. Two rod of copper and brass having same length and cross-section are joined end to end. The free end of copper is at $0^{\circ} \mathrm{C}$ and the free of copper is at $0^{\circ} \mathrm{C}$ and the free end of brass is at $100^{\circ} \mathrm{C}$. The temperature of the junction is

1 $20^{\circ} \mathrm{C}$
2 $40^{\circ} \mathrm{C}$
3 $60^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
NDA (I) 2012
Thermal Properties of Matter

146629 The coefficient of areal expansion of a material is $1.6 \times 10^{-5} \mathrm{~K}^{-1}$. Which one of the following gives the value of coefficient of volume expansion of this material?

1 $0.8 \times 10^{-5} \mathrm{~K}^{-1}$
2 $2.4 \times 10^{-5} \mathrm{~K}^{-1}$
3 $3.2 \times 10^{-5} \mathrm{~K}^{-1}$
4 $4.8 \times 10^{-5} \mathrm{~K}^{-1}$
NDA (II) 2018
Thermal Properties of Matter

146630 A body cools from $60^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$ in $10 \mathrm{~min}$. If the room temperature is $25^{\circ} \mathrm{C}$ and assuming Newton law of cooling to hold good, the temperature of the body at the end of the next 10 min will be-

1 $45^{\circ} \mathrm{C}$
2 $42.85^{\circ} \mathrm{C}$
3 $40^{\circ} \mathrm{C}$
4 $38.5^{\circ} \mathrm{C}$
BCECE-2007
Thermal Properties of Matter

146631 $100 \mathrm{~L}$ of gasoline maintained at $10^{\circ} \mathrm{C}$ is filled into a steel tank, kept in a room at $10^{\circ} \mathrm{C}$. When the temperature of the room is increased to $30^{\circ} \mathrm{C}$, how much gasoline will overflow? Given, $\alpha_{\text {steel }}=12 \times 10^{-6}{ }^{\circ} \mathrm{C}^{-1}$ and coefficient of volume expansion for gasoline $=95 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}$

1 $1.36 \mathrm{~L}$
2 $1.82 \mathrm{~L}$
3 $1.60 \mathrm{~L}$
4 $7.20 \mathrm{~L}$
Shift-I]
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Thermal Properties of Matter

146626 The thermal conductivity of copper is 4 times that of brass. Two rod of copper and brass having same length and cross-section are joined end to end. The free end of copper is at $0^{\circ} \mathrm{C}$ and the free of copper is at $0^{\circ} \mathrm{C}$ and the free end of brass is at $100^{\circ} \mathrm{C}$. The temperature of the junction is

1 $20^{\circ} \mathrm{C}$
2 $40^{\circ} \mathrm{C}$
3 $60^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
NDA (I) 2012
Thermal Properties of Matter

146629 The coefficient of areal expansion of a material is $1.6 \times 10^{-5} \mathrm{~K}^{-1}$. Which one of the following gives the value of coefficient of volume expansion of this material?

1 $0.8 \times 10^{-5} \mathrm{~K}^{-1}$
2 $2.4 \times 10^{-5} \mathrm{~K}^{-1}$
3 $3.2 \times 10^{-5} \mathrm{~K}^{-1}$
4 $4.8 \times 10^{-5} \mathrm{~K}^{-1}$
NDA (II) 2018
Thermal Properties of Matter

146630 A body cools from $60^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$ in $10 \mathrm{~min}$. If the room temperature is $25^{\circ} \mathrm{C}$ and assuming Newton law of cooling to hold good, the temperature of the body at the end of the next 10 min will be-

1 $45^{\circ} \mathrm{C}$
2 $42.85^{\circ} \mathrm{C}$
3 $40^{\circ} \mathrm{C}$
4 $38.5^{\circ} \mathrm{C}$
BCECE-2007
Thermal Properties of Matter

146631 $100 \mathrm{~L}$ of gasoline maintained at $10^{\circ} \mathrm{C}$ is filled into a steel tank, kept in a room at $10^{\circ} \mathrm{C}$. When the temperature of the room is increased to $30^{\circ} \mathrm{C}$, how much gasoline will overflow? Given, $\alpha_{\text {steel }}=12 \times 10^{-6}{ }^{\circ} \mathrm{C}^{-1}$ and coefficient of volume expansion for gasoline $=95 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}$

1 $1.36 \mathrm{~L}$
2 $1.82 \mathrm{~L}$
3 $1.60 \mathrm{~L}$
4 $7.20 \mathrm{~L}$
Shift-I]
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Thermal Properties of Matter

146626 The thermal conductivity of copper is 4 times that of brass. Two rod of copper and brass having same length and cross-section are joined end to end. The free end of copper is at $0^{\circ} \mathrm{C}$ and the free of copper is at $0^{\circ} \mathrm{C}$ and the free end of brass is at $100^{\circ} \mathrm{C}$. The temperature of the junction is

1 $20^{\circ} \mathrm{C}$
2 $40^{\circ} \mathrm{C}$
3 $60^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
NDA (I) 2012
Thermal Properties of Matter

146629 The coefficient of areal expansion of a material is $1.6 \times 10^{-5} \mathrm{~K}^{-1}$. Which one of the following gives the value of coefficient of volume expansion of this material?

1 $0.8 \times 10^{-5} \mathrm{~K}^{-1}$
2 $2.4 \times 10^{-5} \mathrm{~K}^{-1}$
3 $3.2 \times 10^{-5} \mathrm{~K}^{-1}$
4 $4.8 \times 10^{-5} \mathrm{~K}^{-1}$
NDA (II) 2018
Thermal Properties of Matter

146630 A body cools from $60^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$ in $10 \mathrm{~min}$. If the room temperature is $25^{\circ} \mathrm{C}$ and assuming Newton law of cooling to hold good, the temperature of the body at the end of the next 10 min will be-

1 $45^{\circ} \mathrm{C}$
2 $42.85^{\circ} \mathrm{C}$
3 $40^{\circ} \mathrm{C}$
4 $38.5^{\circ} \mathrm{C}$
BCECE-2007
Thermal Properties of Matter

146631 $100 \mathrm{~L}$ of gasoline maintained at $10^{\circ} \mathrm{C}$ is filled into a steel tank, kept in a room at $10^{\circ} \mathrm{C}$. When the temperature of the room is increased to $30^{\circ} \mathrm{C}$, how much gasoline will overflow? Given, $\alpha_{\text {steel }}=12 \times 10^{-6}{ }^{\circ} \mathrm{C}^{-1}$ and coefficient of volume expansion for gasoline $=95 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}$

1 $1.36 \mathrm{~L}$
2 $1.82 \mathrm{~L}$
3 $1.60 \mathrm{~L}$
4 $7.20 \mathrm{~L}$
Shift-I]
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Thermal Properties of Matter

146626 The thermal conductivity of copper is 4 times that of brass. Two rod of copper and brass having same length and cross-section are joined end to end. The free end of copper is at $0^{\circ} \mathrm{C}$ and the free of copper is at $0^{\circ} \mathrm{C}$ and the free end of brass is at $100^{\circ} \mathrm{C}$. The temperature of the junction is

1 $20^{\circ} \mathrm{C}$
2 $40^{\circ} \mathrm{C}$
3 $60^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
NDA (I) 2012
Thermal Properties of Matter

146629 The coefficient of areal expansion of a material is $1.6 \times 10^{-5} \mathrm{~K}^{-1}$. Which one of the following gives the value of coefficient of volume expansion of this material?

1 $0.8 \times 10^{-5} \mathrm{~K}^{-1}$
2 $2.4 \times 10^{-5} \mathrm{~K}^{-1}$
3 $3.2 \times 10^{-5} \mathrm{~K}^{-1}$
4 $4.8 \times 10^{-5} \mathrm{~K}^{-1}$
NDA (II) 2018
Thermal Properties of Matter

146630 A body cools from $60^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$ in $10 \mathrm{~min}$. If the room temperature is $25^{\circ} \mathrm{C}$ and assuming Newton law of cooling to hold good, the temperature of the body at the end of the next 10 min will be-

1 $45^{\circ} \mathrm{C}$
2 $42.85^{\circ} \mathrm{C}$
3 $40^{\circ} \mathrm{C}$
4 $38.5^{\circ} \mathrm{C}$
BCECE-2007
Thermal Properties of Matter

146631 $100 \mathrm{~L}$ of gasoline maintained at $10^{\circ} \mathrm{C}$ is filled into a steel tank, kept in a room at $10^{\circ} \mathrm{C}$. When the temperature of the room is increased to $30^{\circ} \mathrm{C}$, how much gasoline will overflow? Given, $\alpha_{\text {steel }}=12 \times 10^{-6}{ }^{\circ} \mathrm{C}^{-1}$ and coefficient of volume expansion for gasoline $=95 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}$

1 $1.36 \mathrm{~L}$
2 $1.82 \mathrm{~L}$
3 $1.60 \mathrm{~L}$
4 $7.20 \mathrm{~L}$
Shift-I]
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