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प्रश्न
The fastest mode of heat transfer is ______.
उत्तर
The fastest mode of heat transfer is radiation.
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संबंधित प्रश्न
Look at Figure 4.9.
The length of wire PQ in case A is equal to the diameter of the semicircle formed by the wire CDE, in case B. One pin is attached to each wire with the help of wax as shown in Figure 4.9. Which pin will fall first? Explain.
In solid substances, heat is transferred by ______.
In a vacuum, heat energy can travel by the process of ______.
Radiation is defined as the way of heat transfer from one place to another in the form of ______.
Assertion: Radiation is a process of transfer of heat in which a material medium is not necessary.
Reason: The heat from the sun reaches us through millions of miles of empty space by convection.
Define radiation.
Mention the applications of radiation in daily life.
Define radiation.
Give some practical applications of radiation.
In winters, when the sun suddenly goes behind the clouds we feel cold, can you say why?
