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Question

Two thermally insulated chambers are as shown in figure. Mark out the correct option regarding these

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Solution

The correct option is **A** In Fig.1 thermal equilibrium of A,B and C can be achieved, and hence final temperature of A,B and C are the same.

Given: we know that heat can be exchanged through conducting medium and heat cannot be exchanged through insulating medium.

Given: we know that heat can be exchanged through conducting medium and heat cannot be exchanged through insulating medium.

Solution:

**(as there is an insulating medium attached to C from both sides of A and B)** so here thermal equilibrium can't be established in fig. 2.**So, the correct OPTION is A**

−−−−−−−−−seefigure1−−−−−−−−−−−−−−−−

- the temperature of A = temperature of C (there is a conducting slab between A and B)
- the temperature of B = temperature of C (there is a conducting slab between B and C)

−−−−−−−−−−seefigure2−−−−−−−−−−−−−−−−−

- here temperature of A = temperature of B≠ temperature of C

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