Elastic Moduli
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369801 One end of horizontal thick copper wire of length \(2\;L\) and radius \(2R\) is welded to an end of another horizontal thin copper wire of length \(L\) and radus \(R.\) When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is

1 0.50
2 0.25
3 4.00
4 2.00
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369802 The bar shown in the figure is made of a single piece of material. It is fixed at one end. It consists of two segments of equal length \({L / 2}\) each but different cross-sectional area \({A}\) and \({2 A}\). Find the ratio of total elongation in the bar to the elongation produced in thicker segment under the action of an axial force \({F}\). Consider the shape of joint to remain circular. (Given: \({Y}\) is Young's modulus).
supporting img

1 2
2 5
3 7
4 3
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369803 Arubber cord \(10\;m\) long is suspended vertically. How much does it stretch under its own weight (Density of rubber is
\(\left. {1500\;kg/{m^3},Y = 5 \times {{10}^8}\;N/{m^2},g = 10\;m/{s^2}} \right)\)

1 \(7.5 \times {10^{ - 4}}\;\,m\)
2 \(15 \times {10^{ - 4}}\,\;m\)
3 \(25 \times {10^{ - 4}}\;\,m\)
4 \(12 \times {10^{ - 4}}\;\,m\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369804 The mean distance between the atoms of iron is \(3 \times {10^{ - 10}}\;m\) and interatomic force constant for iron is \(7\;N/m\). The Young's modulus of elasticity for iron is

1 \(23.3 \times {10^{10}}\;N/{m^2}\)
2 \(2.33 \times {10^5}\;N/{m^2}\)
3 \(2.33 \times {10^{10}}\;N/{m^2}\)
4 \(233 \times {10^{10}}\;N/{m^2}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369801 One end of horizontal thick copper wire of length \(2\;L\) and radius \(2R\) is welded to an end of another horizontal thin copper wire of length \(L\) and radus \(R.\) When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is

1 0.50
2 0.25
3 4.00
4 2.00
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369802 The bar shown in the figure is made of a single piece of material. It is fixed at one end. It consists of two segments of equal length \({L / 2}\) each but different cross-sectional area \({A}\) and \({2 A}\). Find the ratio of total elongation in the bar to the elongation produced in thicker segment under the action of an axial force \({F}\). Consider the shape of joint to remain circular. (Given: \({Y}\) is Young's modulus).
supporting img

1 2
2 5
3 7
4 3
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369803 Arubber cord \(10\;m\) long is suspended vertically. How much does it stretch under its own weight (Density of rubber is
\(\left. {1500\;kg/{m^3},Y = 5 \times {{10}^8}\;N/{m^2},g = 10\;m/{s^2}} \right)\)

1 \(7.5 \times {10^{ - 4}}\;\,m\)
2 \(15 \times {10^{ - 4}}\,\;m\)
3 \(25 \times {10^{ - 4}}\;\,m\)
4 \(12 \times {10^{ - 4}}\;\,m\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369804 The mean distance between the atoms of iron is \(3 \times {10^{ - 10}}\;m\) and interatomic force constant for iron is \(7\;N/m\). The Young's modulus of elasticity for iron is

1 \(23.3 \times {10^{10}}\;N/{m^2}\)
2 \(2.33 \times {10^5}\;N/{m^2}\)
3 \(2.33 \times {10^{10}}\;N/{m^2}\)
4 \(233 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369801 One end of horizontal thick copper wire of length \(2\;L\) and radius \(2R\) is welded to an end of another horizontal thin copper wire of length \(L\) and radus \(R.\) When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is

1 0.50
2 0.25
3 4.00
4 2.00
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369802 The bar shown in the figure is made of a single piece of material. It is fixed at one end. It consists of two segments of equal length \({L / 2}\) each but different cross-sectional area \({A}\) and \({2 A}\). Find the ratio of total elongation in the bar to the elongation produced in thicker segment under the action of an axial force \({F}\). Consider the shape of joint to remain circular. (Given: \({Y}\) is Young's modulus).
supporting img

1 2
2 5
3 7
4 3
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369803 Arubber cord \(10\;m\) long is suspended vertically. How much does it stretch under its own weight (Density of rubber is
\(\left. {1500\;kg/{m^3},Y = 5 \times {{10}^8}\;N/{m^2},g = 10\;m/{s^2}} \right)\)

1 \(7.5 \times {10^{ - 4}}\;\,m\)
2 \(15 \times {10^{ - 4}}\,\;m\)
3 \(25 \times {10^{ - 4}}\;\,m\)
4 \(12 \times {10^{ - 4}}\;\,m\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369804 The mean distance between the atoms of iron is \(3 \times {10^{ - 10}}\;m\) and interatomic force constant for iron is \(7\;N/m\). The Young's modulus of elasticity for iron is

1 \(23.3 \times {10^{10}}\;N/{m^2}\)
2 \(2.33 \times {10^5}\;N/{m^2}\)
3 \(2.33 \times {10^{10}}\;N/{m^2}\)
4 \(233 \times {10^{10}}\;N/{m^2}\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369801 One end of horizontal thick copper wire of length \(2\;L\) and radius \(2R\) is welded to an end of another horizontal thin copper wire of length \(L\) and radus \(R.\) When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is

1 0.50
2 0.25
3 4.00
4 2.00
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369802 The bar shown in the figure is made of a single piece of material. It is fixed at one end. It consists of two segments of equal length \({L / 2}\) each but different cross-sectional area \({A}\) and \({2 A}\). Find the ratio of total elongation in the bar to the elongation produced in thicker segment under the action of an axial force \({F}\). Consider the shape of joint to remain circular. (Given: \({Y}\) is Young's modulus).
supporting img

1 2
2 5
3 7
4 3
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369803 Arubber cord \(10\;m\) long is suspended vertically. How much does it stretch under its own weight (Density of rubber is
\(\left. {1500\;kg/{m^3},Y = 5 \times {{10}^8}\;N/{m^2},g = 10\;m/{s^2}} \right)\)

1 \(7.5 \times {10^{ - 4}}\;\,m\)
2 \(15 \times {10^{ - 4}}\,\;m\)
3 \(25 \times {10^{ - 4}}\;\,m\)
4 \(12 \times {10^{ - 4}}\;\,m\)
PHXI09:MECHANICAL PROPERTIES OF SOLIDS

369804 The mean distance between the atoms of iron is \(3 \times {10^{ - 10}}\;m\) and interatomic force constant for iron is \(7\;N/m\). The Young's modulus of elasticity for iron is

1 \(23.3 \times {10^{10}}\;N/{m^2}\)
2 \(2.33 \times {10^5}\;N/{m^2}\)
3 \(2.33 \times {10^{10}}\;N/{m^2}\)
4 \(233 \times {10^{10}}\;N/{m^2}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here