Graph in figure shows the variation in density of a liquid substance with temperature. It can be seen that density of this substance is minimum at temperature $T_{C}$ . This liquid is used as a thermometer fluid in bulb of a thermometer and two such identical thermometers are used to measure temperature of two bodies A and B which are at temperature $T_{1}$ and $T_{2}$ . Now in an isolated system A and B are brought in contact so that they will be in thermal equilibrium. Which of the following statements is are correct.

Initially liquid level in thermometer of body A is lower than that of B.

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After thermal equilibrium, the level of liquid in both thermometers are less than initial level of both.

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After thermal equilibrium, the level of liquid in both thermometers may be more than initial level of both.

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After thermal equilibrium, the level of liquid in thermometer in contact with body A is more its initial level while the level of liquid in thermometer in contact with body B may be same as its initial level.

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Solution

The correct options are
A Initially liquid level in thermometer of body A is lower than that of B.
C After thermal equilibrium, the level of liquid in both thermometers may be more than initial level of both.

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The correct options are A Initially liquid level in thermometer of body A is lower than that of B. C After thermal equilibrium, the level of liquid in both thermometers may be more than initial level of both.

The correct options are
A Initially liquid level in thermometer of body A is lower than that of B.
C After thermal equilibrium, the level of liquid in both thermometers may be more than initial level of both.