Elastic Moduli
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369758 Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion :
The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason :
A coil spring of copper has more tensile stength than a steel spring of same dimensions.
From above statements, choose the most approriate answer from the options given below

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369759 If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

1 Infinity
2 Zero
3 \(3 \times {10^{10}}\;N/{m^2}\)
4 \(2 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369760 Two parallel and opposite forces each \(5000\;N\) are applied tangentially to the upper and lower faces of a cubical metal block of side \(25\;cm\). The angle of shear is (The shear modulus of the metal is \(80\,GPa)\)

1 \({10^{ - 5}}\,rad\)
2 \({10^{ - 4}}\,rad\)
3 \({10^{ - 7}}\,rad\)
4 \({10^{ - 6}}\,rad\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369761 Modulus of rigidity of ideal liquids is

1 Infinity
2 Zero
3 Unity
4 Some finite small non-zero constant value
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369762 The upper end of wire of radius \(7\;mm\) and length \(1\;m\) is clamped and its other end is twisted through an angle of \(60^{\circ}\). Then angle of shear is

1 \(30^{\circ}\)
2 \(0.45^{\circ}\)
3 \(0.42^{\circ}\)
4 \(92^{\circ}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369758 Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion :
The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason :
A coil spring of copper has more tensile stength than a steel spring of same dimensions.
From above statements, choose the most approriate answer from the options given below

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369759 If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

1 Infinity
2 Zero
3 \(3 \times {10^{10}}\;N/{m^2}\)
4 \(2 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369760 Two parallel and opposite forces each \(5000\;N\) are applied tangentially to the upper and lower faces of a cubical metal block of side \(25\;cm\). The angle of shear is (The shear modulus of the metal is \(80\,GPa)\)

1 \({10^{ - 5}}\,rad\)
2 \({10^{ - 4}}\,rad\)
3 \({10^{ - 7}}\,rad\)
4 \({10^{ - 6}}\,rad\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369761 Modulus of rigidity of ideal liquids is

1 Infinity
2 Zero
3 Unity
4 Some finite small non-zero constant value
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369762 The upper end of wire of radius \(7\;mm\) and length \(1\;m\) is clamped and its other end is twisted through an angle of \(60^{\circ}\). Then angle of shear is

1 \(30^{\circ}\)
2 \(0.45^{\circ}\)
3 \(0.42^{\circ}\)
4 \(92^{\circ}\)
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PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369758 Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion :
The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason :
A coil spring of copper has more tensile stength than a steel spring of same dimensions.
From above statements, choose the most approriate answer from the options given below

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369759 If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

1 Infinity
2 Zero
3 \(3 \times {10^{10}}\;N/{m^2}\)
4 \(2 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369760 Two parallel and opposite forces each \(5000\;N\) are applied tangentially to the upper and lower faces of a cubical metal block of side \(25\;cm\). The angle of shear is (The shear modulus of the metal is \(80\,GPa)\)

1 \({10^{ - 5}}\,rad\)
2 \({10^{ - 4}}\,rad\)
3 \({10^{ - 7}}\,rad\)
4 \({10^{ - 6}}\,rad\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369761 Modulus of rigidity of ideal liquids is

1 Infinity
2 Zero
3 Unity
4 Some finite small non-zero constant value
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369762 The upper end of wire of radius \(7\;mm\) and length \(1\;m\) is clamped and its other end is twisted through an angle of \(60^{\circ}\). Then angle of shear is

1 \(30^{\circ}\)
2 \(0.45^{\circ}\)
3 \(0.42^{\circ}\)
4 \(92^{\circ}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369758 Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion :
The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason :
A coil spring of copper has more tensile stength than a steel spring of same dimensions.
From above statements, choose the most approriate answer from the options given below

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369759 If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

1 Infinity
2 Zero
3 \(3 \times {10^{10}}\;N/{m^2}\)
4 \(2 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369760 Two parallel and opposite forces each \(5000\;N\) are applied tangentially to the upper and lower faces of a cubical metal block of side \(25\;cm\). The angle of shear is (The shear modulus of the metal is \(80\,GPa)\)

1 \({10^{ - 5}}\,rad\)
2 \({10^{ - 4}}\,rad\)
3 \({10^{ - 7}}\,rad\)
4 \({10^{ - 6}}\,rad\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369761 Modulus of rigidity of ideal liquids is

1 Infinity
2 Zero
3 Unity
4 Some finite small non-zero constant value
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369762 The upper end of wire of radius \(7\;mm\) and length \(1\;m\) is clamped and its other end is twisted through an angle of \(60^{\circ}\). Then angle of shear is

1 \(30^{\circ}\)
2 \(0.45^{\circ}\)
3 \(0.42^{\circ}\)
4 \(92^{\circ}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369758 Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion :
The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason :
A coil spring of copper has more tensile stength than a steel spring of same dimensions.
From above statements, choose the most approriate answer from the options given below

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369759 If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

1 Infinity
2 Zero
3 \(3 \times {10^{10}}\;N/{m^2}\)
4 \(2 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369760 Two parallel and opposite forces each \(5000\;N\) are applied tangentially to the upper and lower faces of a cubical metal block of side \(25\;cm\). The angle of shear is (The shear modulus of the metal is \(80\,GPa)\)

1 \({10^{ - 5}}\,rad\)
2 \({10^{ - 4}}\,rad\)
3 \({10^{ - 7}}\,rad\)
4 \({10^{ - 6}}\,rad\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369761 Modulus of rigidity of ideal liquids is

1 Infinity
2 Zero
3 Unity
4 Some finite small non-zero constant value
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369762 The upper end of wire of radius \(7\;mm\) and length \(1\;m\) is clamped and its other end is twisted through an angle of \(60^{\circ}\). Then angle of shear is

1 \(30^{\circ}\)
2 \(0.45^{\circ}\)
3 \(0.42^{\circ}\)
4 \(92^{\circ}\)