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Two substances A and B have specific heats c and 2 c respectively. If A and B are given Q and 4Q amounts of heat respectively, the change in their temperatures is the same. If the mass of A is m, what is the mass of B?
Define temperature on a conventional basis.
State the types of thermal expansion. What is the relation between α and γ?
Name the substance which contracts when heated from 00C to 40C.
What is the relation between α and γ?
Give a scientific reason for the following:
It is better to use thin blankets to keep the body warm rather than using a single blanket of thickness equal to their combined thickness.
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Conduction is not possible in vacuum.
If a substance is heated or cooled, the change in mass of that substance is
