NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXI11:THERMAL PROPERTIES OF MATTER
366704
A metal plate of area \(1.2\;{m^2}\) increases its area by \(2.4 \times {10^{ - 4}}\;{m^2}\) when it is heated from \(0^\circ C\) to \(100^\circ C\). The coefficient of cubical expansion of the metal expressed in per \(^\circ C\) is
366705
A sheet of brass is \(100\;cm\) long and \(40\;cm\) broad at \(273\;K\). The area of the surface increase by 2 \(c{m^2}\) at \(100^\circ C\). What is the coefficient of linear expansion of brass?
366706
A rectangular block is heated from \(0^\circ C\) to \(100^\circ C\). The percentage increases in its length is \(0.2 \%\). What is the percentage increases in its volume?
1 \(0.10 \%\)
2 \(0.2 \%\)
3 \(0.4 \%\)
4 \(0.6 \%\)
Explanation:
As, \(V=L^{3}\) \(\therefore \dfrac{\Delta V \times 100}{V}=3 \dfrac{\Delta L \times 100}{L}=3 \times 0.2 \%=0.6 \%\)
PHXI11:THERMAL PROPERTIES OF MATTER
366707
When a metal bar is cooled, then which one of these statements is correct.
1 Length, density and mass remain same.
2 Length decreases, density increases but mass remains the Same
3 Length and mass decrease but density remains the same.
4 Length and density decrease but mass remains the same.
366704
A metal plate of area \(1.2\;{m^2}\) increases its area by \(2.4 \times {10^{ - 4}}\;{m^2}\) when it is heated from \(0^\circ C\) to \(100^\circ C\). The coefficient of cubical expansion of the metal expressed in per \(^\circ C\) is
366705
A sheet of brass is \(100\;cm\) long and \(40\;cm\) broad at \(273\;K\). The area of the surface increase by 2 \(c{m^2}\) at \(100^\circ C\). What is the coefficient of linear expansion of brass?
366706
A rectangular block is heated from \(0^\circ C\) to \(100^\circ C\). The percentage increases in its length is \(0.2 \%\). What is the percentage increases in its volume?
1 \(0.10 \%\)
2 \(0.2 \%\)
3 \(0.4 \%\)
4 \(0.6 \%\)
Explanation:
As, \(V=L^{3}\) \(\therefore \dfrac{\Delta V \times 100}{V}=3 \dfrac{\Delta L \times 100}{L}=3 \times 0.2 \%=0.6 \%\)
PHXI11:THERMAL PROPERTIES OF MATTER
366707
When a metal bar is cooled, then which one of these statements is correct.
1 Length, density and mass remain same.
2 Length decreases, density increases but mass remains the Same
3 Length and mass decrease but density remains the same.
4 Length and density decrease but mass remains the same.
366704
A metal plate of area \(1.2\;{m^2}\) increases its area by \(2.4 \times {10^{ - 4}}\;{m^2}\) when it is heated from \(0^\circ C\) to \(100^\circ C\). The coefficient of cubical expansion of the metal expressed in per \(^\circ C\) is
366705
A sheet of brass is \(100\;cm\) long and \(40\;cm\) broad at \(273\;K\). The area of the surface increase by 2 \(c{m^2}\) at \(100^\circ C\). What is the coefficient of linear expansion of brass?
366706
A rectangular block is heated from \(0^\circ C\) to \(100^\circ C\). The percentage increases in its length is \(0.2 \%\). What is the percentage increases in its volume?
1 \(0.10 \%\)
2 \(0.2 \%\)
3 \(0.4 \%\)
4 \(0.6 \%\)
Explanation:
As, \(V=L^{3}\) \(\therefore \dfrac{\Delta V \times 100}{V}=3 \dfrac{\Delta L \times 100}{L}=3 \times 0.2 \%=0.6 \%\)
PHXI11:THERMAL PROPERTIES OF MATTER
366707
When a metal bar is cooled, then which one of these statements is correct.
1 Length, density and mass remain same.
2 Length decreases, density increases but mass remains the Same
3 Length and mass decrease but density remains the same.
4 Length and density decrease but mass remains the same.
366704
A metal plate of area \(1.2\;{m^2}\) increases its area by \(2.4 \times {10^{ - 4}}\;{m^2}\) when it is heated from \(0^\circ C\) to \(100^\circ C\). The coefficient of cubical expansion of the metal expressed in per \(^\circ C\) is
366705
A sheet of brass is \(100\;cm\) long and \(40\;cm\) broad at \(273\;K\). The area of the surface increase by 2 \(c{m^2}\) at \(100^\circ C\). What is the coefficient of linear expansion of brass?
366706
A rectangular block is heated from \(0^\circ C\) to \(100^\circ C\). The percentage increases in its length is \(0.2 \%\). What is the percentage increases in its volume?
1 \(0.10 \%\)
2 \(0.2 \%\)
3 \(0.4 \%\)
4 \(0.6 \%\)
Explanation:
As, \(V=L^{3}\) \(\therefore \dfrac{\Delta V \times 100}{V}=3 \dfrac{\Delta L \times 100}{L}=3 \times 0.2 \%=0.6 \%\)
PHXI11:THERMAL PROPERTIES OF MATTER
366707
When a metal bar is cooled, then which one of these statements is correct.
1 Length, density and mass remain same.
2 Length decreases, density increases but mass remains the Same
3 Length and mass decrease but density remains the same.
4 Length and density decrease but mass remains the same.