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प्रश्न
Assertion: Maximum sunlight reaches earth’s surface during the noon time.
Reason: Heat from the sun reaches earth’s surface by radiation.
पर्याय
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If assertion is false but reason is true.
उत्तर
If both assertion and reason are true but reason is not the correct explanation of assertion.
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संबंधित प्रश्न
The fastest mode of heat transfer is ______.
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.
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.
Define radiation.
______ is the method of heat transfer that does not require particles to carry the heat energy.
Radiation consists of ______ waves traveling at the speed of light.
Water is used as a coolant in car radiators. Why?
Give some practical applications of radiation.
In winters, when the sun suddenly goes behind the clouds we feel cold, can you say why?
