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Identify the process in which convection is not the primary mode of heat transfer.

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Important Questions on Kinetic Theory of Gases and Radiation

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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 103
A rod of length ℓ and cross section area A has a variable thermal conductivity given by k=αT, where α is positive constant and T is temperature in kelvin. Two ends of the rod are maintained at temperatures T1 and T2 T1>T2. Heat current flowing through the rod will be
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 104
An iron mass falls from a height of 1 km on the ground. If all the energy is converted into heat, then the rise of temperature of the mass will be
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 105
Four rods of length l and radius r of the same material are kept at the same temperature. Which of the rods conduct most heat?
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 106
A fan produces a feeling of comfort during hot weather because
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 107
Which one of the following is the mode of heat transfer in which warm material is transported, so as to displace a cooler material?
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 108

A body A of mass 2 kg and B of mass 4 kg of same material are kept in the sunshine for sometime. If the rise in temperature is equal for both the bodies, then which one among the following in this regard is correct?

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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 109
Which one of the following statements is not correct?
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Physics Crash Course MHT-CET>Chapter 12 - Kinetic Theory of Gases and Radiation>Exercise 1>Q 110

If E Represents emissivity of a substance ,Eb Represents emissivity of black body and a Represents coefficient of absorption, then correct equation out of the following is