Thermal Properties of Matter questions
823 published questions with worked solutions.
- A good absorber of heat is a good radiator of heat also is :
- The temperature at which a black body ceases radiated energy is
- According to Prevost's theory, every object
- Prevost's theory of heat exchange is not applicable at temperature
- For a body slightly above the room temperature, the rate of loss of heat depends upon
- Who proposed the hypothesis that exchange of radiation takes place between the bodies of all temperature?
- According to Prevost's theory of exchanges
- The dimensions of Stefan's constant are
- The amount of radiation emitted by a perfectly black body is proportional to
- The amount of heat energy radiated per second by a surface depends upon
- Radiation emitted by a surface is directly proportional to
- The amount of heat energy radiated per unit time per unit area by a body depends upon.
- A body radiates heat at high temperature T. The rate of radiation of heat is proportional to
- The amount of heat energy radiated per second by the surface depends on
- The luminousity of a star is10000 times that of the sun. If the surface temperature of the sun is 6000 K, then the surface...
- A black body at temperature 227 °C radiates heat at the rate of 5 cal/cm^2 s, at a temperature of 27°C, the rate of heat radiated...
- A solid sphere cools at the rate of 2.8°C per minute, when its temperature is 127°C. Find the rate at which another solid copper...
- The ratio of the rate of radiation of heat by a perfectly black body at a temperatures 527°C and 127°C is
- A black body radiates 3 J/cm^2 s when its temperature is 127°C. How much heat will be radiated cm^2 s when its temperature is...
- If the temperature of a hot body is increased by 50 %, then amount of radiant energy emitted by it increases approximately by
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