Thermal Expansion
PHXI11:THERMAL PROPERTIES OF MATTER

366785 A clock while keeps correct time at \( 30^\circ C\) has a pendulum rod made of brass. The number of seconds it gains (or) loses per second when the temperature falls to \( 10^\circ C\) is
\(\left[\alpha\right.\) brass \(\left. { = 18 \times {{10}^{ - 6}}/^\circ C} \right]\)

1 \(18 \times {10^{ - 6}}\,\sec \)
2 \(18 \times {10^{ - 5}}\,{\rm{sec}}\)
3 \(0.0018{\mkern 1mu} \,{\rm{sec}}\)
4 \(9 \times {10^{ - 6}}\,{\rm{sec}}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366786 A simple pendulum made of a bob of mass \(m\) and a metallic wire of negligible mass has time period \(2\;s\) at \(T = 0^\circ C\). If the temperature of the wire is increased and the corresponding change in its time period is plotted against its temperature, the resulting graph is a line of slop \(S\). If the coefficient of linear expansion of metal is \(\alpha\) then the value of \(S\) is :

1 \(\dfrac{1}{\alpha}\)
2 \(2 \alpha\)
3 \(\dfrac{\alpha}{2}\)
4 \(\alpha\)
PHXI11:THERMAL PROPERTIES OF MATTER

366787 On a linear temperature scale \(Y\), water freezes at \( - 160^\circ Y\) and boils at \( - 500^\circ Y\). On this Y scale, a temperature of \(340\;K\) would be read as: (Water freezes at \(273\;K\) and boils at \(373\;K\))

1 \(-73.7^{\circ} Y\)
2 \(-233.7^{\circ} Y\)
3 \(-86.3^{\circ} Y\)
4 \( - 106.3^\circ Y\)
PHXI11:THERMAL PROPERTIES OF MATTER

366788 A clock with a metal pendulum beating seconds keeps correct time at \(0^\circ C\). If it loses \(12.5\;s\) a day at \(25^\circ C\), the coefficient of linear expansion of metal of pendulum is

1 \(\frac{1}{{86400}}{\rm{per}}\,^\circ C\)
2 \(\frac{1}{{43200}}{\mathop{\rm per}\nolimits} \,^\circ C\)
3 \(\frac{1}{{14400}}{\mathop{\rm per}\nolimits} \,^\circ C\)
4 \(\frac{{\rm{1}}}{{{\rm{28800}}}}{\rm{per}}\,\,^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366785 A clock while keeps correct time at \( 30^\circ C\) has a pendulum rod made of brass. The number of seconds it gains (or) loses per second when the temperature falls to \( 10^\circ C\) is
\(\left[\alpha\right.\) brass \(\left. { = 18 \times {{10}^{ - 6}}/^\circ C} \right]\)

1 \(18 \times {10^{ - 6}}\,\sec \)
2 \(18 \times {10^{ - 5}}\,{\rm{sec}}\)
3 \(0.0018{\mkern 1mu} \,{\rm{sec}}\)
4 \(9 \times {10^{ - 6}}\,{\rm{sec}}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366786 A simple pendulum made of a bob of mass \(m\) and a metallic wire of negligible mass has time period \(2\;s\) at \(T = 0^\circ C\). If the temperature of the wire is increased and the corresponding change in its time period is plotted against its temperature, the resulting graph is a line of slop \(S\). If the coefficient of linear expansion of metal is \(\alpha\) then the value of \(S\) is :

1 \(\dfrac{1}{\alpha}\)
2 \(2 \alpha\)
3 \(\dfrac{\alpha}{2}\)
4 \(\alpha\)
PHXI11:THERMAL PROPERTIES OF MATTER

366787 On a linear temperature scale \(Y\), water freezes at \( - 160^\circ Y\) and boils at \( - 500^\circ Y\). On this Y scale, a temperature of \(340\;K\) would be read as: (Water freezes at \(273\;K\) and boils at \(373\;K\))

1 \(-73.7^{\circ} Y\)
2 \(-233.7^{\circ} Y\)
3 \(-86.3^{\circ} Y\)
4 \( - 106.3^\circ Y\)
PHXI11:THERMAL PROPERTIES OF MATTER

366788 A clock with a metal pendulum beating seconds keeps correct time at \(0^\circ C\). If it loses \(12.5\;s\) a day at \(25^\circ C\), the coefficient of linear expansion of metal of pendulum is

1 \(\frac{1}{{86400}}{\rm{per}}\,^\circ C\)
2 \(\frac{1}{{43200}}{\mathop{\rm per}\nolimits} \,^\circ C\)
3 \(\frac{1}{{14400}}{\mathop{\rm per}\nolimits} \,^\circ C\)
4 \(\frac{{\rm{1}}}{{{\rm{28800}}}}{\rm{per}}\,\,^\circ C\)
PHXI11:THERMAL PROPERTIES OF MATTER

366785 A clock while keeps correct time at \( 30^\circ C\) has a pendulum rod made of brass. The number of seconds it gains (or) loses per second when the temperature falls to \( 10^\circ C\) is
\(\left[\alpha\right.\) brass \(\left. { = 18 \times {{10}^{ - 6}}/^\circ C} \right]\)

1 \(18 \times {10^{ - 6}}\,\sec \)
2 \(18 \times {10^{ - 5}}\,{\rm{sec}}\)
3 \(0.0018{\mkern 1mu} \,{\rm{sec}}\)
4 \(9 \times {10^{ - 6}}\,{\rm{sec}}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366786 A simple pendulum made of a bob of mass \(m\) and a metallic wire of negligible mass has time period \(2\;s\) at \(T = 0^\circ C\). If the temperature of the wire is increased and the corresponding change in its time period is plotted against its temperature, the resulting graph is a line of slop \(S\). If the coefficient of linear expansion of metal is \(\alpha\) then the value of \(S\) is :

1 \(\dfrac{1}{\alpha}\)
2 \(2 \alpha\)
3 \(\dfrac{\alpha}{2}\)
4 \(\alpha\)
PHXI11:THERMAL PROPERTIES OF MATTER

366787 On a linear temperature scale \(Y\), water freezes at \( - 160^\circ Y\) and boils at \( - 500^\circ Y\). On this Y scale, a temperature of \(340\;K\) would be read as: (Water freezes at \(273\;K\) and boils at \(373\;K\))

1 \(-73.7^{\circ} Y\)
2 \(-233.7^{\circ} Y\)
3 \(-86.3^{\circ} Y\)
4 \( - 106.3^\circ Y\)
PHXI11:THERMAL PROPERTIES OF MATTER

366788 A clock with a metal pendulum beating seconds keeps correct time at \(0^\circ C\). If it loses \(12.5\;s\) a day at \(25^\circ C\), the coefficient of linear expansion of metal of pendulum is

1 \(\frac{1}{{86400}}{\rm{per}}\,^\circ C\)
2 \(\frac{1}{{43200}}{\mathop{\rm per}\nolimits} \,^\circ C\)
3 \(\frac{1}{{14400}}{\mathop{\rm per}\nolimits} \,^\circ C\)
4 \(\frac{{\rm{1}}}{{{\rm{28800}}}}{\rm{per}}\,\,^\circ C\)
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PHXI11:THERMAL PROPERTIES OF MATTER

366785 A clock while keeps correct time at \( 30^\circ C\) has a pendulum rod made of brass. The number of seconds it gains (or) loses per second when the temperature falls to \( 10^\circ C\) is
\(\left[\alpha\right.\) brass \(\left. { = 18 \times {{10}^{ - 6}}/^\circ C} \right]\)

1 \(18 \times {10^{ - 6}}\,\sec \)
2 \(18 \times {10^{ - 5}}\,{\rm{sec}}\)
3 \(0.0018{\mkern 1mu} \,{\rm{sec}}\)
4 \(9 \times {10^{ - 6}}\,{\rm{sec}}\)
PHXI11:THERMAL PROPERTIES OF MATTER

366786 A simple pendulum made of a bob of mass \(m\) and a metallic wire of negligible mass has time period \(2\;s\) at \(T = 0^\circ C\). If the temperature of the wire is increased and the corresponding change in its time period is plotted against its temperature, the resulting graph is a line of slop \(S\). If the coefficient of linear expansion of metal is \(\alpha\) then the value of \(S\) is :

1 \(\dfrac{1}{\alpha}\)
2 \(2 \alpha\)
3 \(\dfrac{\alpha}{2}\)
4 \(\alpha\)
PHXI11:THERMAL PROPERTIES OF MATTER

366787 On a linear temperature scale \(Y\), water freezes at \( - 160^\circ Y\) and boils at \( - 500^\circ Y\). On this Y scale, a temperature of \(340\;K\) would be read as: (Water freezes at \(273\;K\) and boils at \(373\;K\))

1 \(-73.7^{\circ} Y\)
2 \(-233.7^{\circ} Y\)
3 \(-86.3^{\circ} Y\)
4 \( - 106.3^\circ Y\)
PHXI11:THERMAL PROPERTIES OF MATTER

366788 A clock with a metal pendulum beating seconds keeps correct time at \(0^\circ C\). If it loses \(12.5\;s\) a day at \(25^\circ C\), the coefficient of linear expansion of metal of pendulum is

1 \(\frac{1}{{86400}}{\rm{per}}\,^\circ C\)
2 \(\frac{1}{{43200}}{\mathop{\rm per}\nolimits} \,^\circ C\)
3 \(\frac{1}{{14400}}{\mathop{\rm per}\nolimits} \,^\circ C\)
4 \(\frac{{\rm{1}}}{{{\rm{28800}}}}{\rm{per}}\,\,^\circ C\)