81. In a refrigerator, the cooling system should always be
82. In a refrigerator what produces the cooling ?
83. Which of the following has the highest entropy?
84. Which of these branches of Physics deal with heat and temperature and their relation to energy and work?
85. The characteristic invalid for heat radiation is that it travels :
86. A cycle tyre bursts suddenly. This represents an :
87. Which has the lowest albedo?
88. Which one of the following is a non-dimensional quantity?
89. The dimension of Planck constant equals to that of
90. The recoiling of gun is an example of which of the following?
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