EXAMIANS
According to Stefan's law, the total radiation from a black body per second per unit area is proportional to
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The heat is transferred by conduction, convection and radiation in
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According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
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In case of liquids and gases, the heat transfer takes place according to
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The automobile radiator is a heat exchanger of
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In regenerator type heat exchanger, heat transfer takes place by
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Fourier's law of heat conduction gives the heat flow for
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The thermal diffusivities for solids are generally
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The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as
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According to Wien's law, the wavelength corresponding to maximum energy is proportion to
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