Thermal Expansion
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PHXI11:THERMAL PROPERTIES OF MATTER

366764 In figure which strip brass or steel have higher coefficient of linear expansion.
supporting img

1 Steel strip
2 Brass strip
3 Cannot be decided from given data
4 Both strips have same coefficient of linear expansion.
PHXI11:THERMAL PROPERTIES OF MATTER

366765 A uniform metal rod is used as a bar pendulum. If the room temperature rises by \(10^\circ C,\) and the coefficient of linear expansion of the metal of the rod is \(2 \times 10^{-6}\) per \(^\circ C\), the period of the pendulum will have percentage increase of

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

366766 When a bimetallic strip is heated, it

1 Bends in the form of an arc with the more expandable metal outside
2 Does not bend at all
3 Bends in the form of an arc with the more expandable metal inside
4 Gets twisted in the form of an helix
PHXI11:THERMAL PROPERTIES OF MATTER

366767 The variation of lengths of two metal rods \(A\) and \(B\) with change in temperature are shown in figure. The coefficient of linear expansion \(\alpha_{A}\) for the metal \(A\) will be: (Given \({\alpha _B} = 9 \times {10^{ - 6}}/^\circ C\) )
supporting img

1 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
2 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
3 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
4 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
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PHXI11:THERMAL PROPERTIES OF MATTER

366764 In figure which strip brass or steel have higher coefficient of linear expansion.
supporting img

1 Steel strip
2 Brass strip
3 Cannot be decided from given data
4 Both strips have same coefficient of linear expansion.
PHXI11:THERMAL PROPERTIES OF MATTER

366765 A uniform metal rod is used as a bar pendulum. If the room temperature rises by \(10^\circ C,\) and the coefficient of linear expansion of the metal of the rod is \(2 \times 10^{-6}\) per \(^\circ C\), the period of the pendulum will have percentage increase of

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

366766 When a bimetallic strip is heated, it

1 Bends in the form of an arc with the more expandable metal outside
2 Does not bend at all
3 Bends in the form of an arc with the more expandable metal inside
4 Gets twisted in the form of an helix
PHXI11:THERMAL PROPERTIES OF MATTER

366767 The variation of lengths of two metal rods \(A\) and \(B\) with change in temperature are shown in figure. The coefficient of linear expansion \(\alpha_{A}\) for the metal \(A\) will be: (Given \({\alpha _B} = 9 \times {10^{ - 6}}/^\circ C\) )
supporting img

1 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
2 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
3 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
4 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
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PHXI11:THERMAL PROPERTIES OF MATTER

366764 In figure which strip brass or steel have higher coefficient of linear expansion.
supporting img

1 Steel strip
2 Brass strip
3 Cannot be decided from given data
4 Both strips have same coefficient of linear expansion.
PHXI11:THERMAL PROPERTIES OF MATTER

366765 A uniform metal rod is used as a bar pendulum. If the room temperature rises by \(10^\circ C,\) and the coefficient of linear expansion of the metal of the rod is \(2 \times 10^{-6}\) per \(^\circ C\), the period of the pendulum will have percentage increase of

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

366766 When a bimetallic strip is heated, it

1 Bends in the form of an arc with the more expandable metal outside
2 Does not bend at all
3 Bends in the form of an arc with the more expandable metal inside
4 Gets twisted in the form of an helix
PHXI11:THERMAL PROPERTIES OF MATTER

366767 The variation of lengths of two metal rods \(A\) and \(B\) with change in temperature are shown in figure. The coefficient of linear expansion \(\alpha_{A}\) for the metal \(A\) will be: (Given \({\alpha _B} = 9 \times {10^{ - 6}}/^\circ C\) )
supporting img

1 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
2 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
3 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
4 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
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PHXI11:THERMAL PROPERTIES OF MATTER

366764 In figure which strip brass or steel have higher coefficient of linear expansion.
supporting img

1 Steel strip
2 Brass strip
3 Cannot be decided from given data
4 Both strips have same coefficient of linear expansion.
PHXI11:THERMAL PROPERTIES OF MATTER

366765 A uniform metal rod is used as a bar pendulum. If the room temperature rises by \(10^\circ C,\) and the coefficient of linear expansion of the metal of the rod is \(2 \times 10^{-6}\) per \(^\circ C\), the period of the pendulum will have percentage increase of

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

366766 When a bimetallic strip is heated, it

1 Bends in the form of an arc with the more expandable metal outside
2 Does not bend at all
3 Bends in the form of an arc with the more expandable metal inside
4 Gets twisted in the form of an helix
PHXI11:THERMAL PROPERTIES OF MATTER

366767 The variation of lengths of two metal rods \(A\) and \(B\) with change in temperature are shown in figure. The coefficient of linear expansion \(\alpha_{A}\) for the metal \(A\) will be: (Given \({\alpha _B} = 9 \times {10^{ - 6}}/^\circ C\) )
supporting img

1 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
2 \({\alpha _A} = 3 \times {10^{ - 6}}/^\circ C\)
3 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)
4 \({\alpha _A} = 27 \times {10^{ - 6}}/^\circ C\)