Ques 1) If two bodies are in thermal equilibrium in one frame, will they be in thermal equilibrium in all frames ? Ques 2) Does the temperature of a body depends on the frame from which it is observed ? Ques 3) The length of a brass rod is found to be smaller on a hot summer day than on a cold winter day as measured by the same aluminium scale. Do we conclude that brass shrinks on heating ? Ques 4) If an automobile engine is overheated, it is cooled by putting water on it. It is advised that the water should be put slowly with engine running. Explain the reason. Ques 5) Is it possible for two bodies to be in thermal equilibrium , if they are not in contact ?