Advertisements
Advertisements
प्रश्न
The earth receives heat from the sun by ______.
पर्याय
radiation
white
conduction
blue
convection
bad conductor
good conductor
black
reflection
Advertisements
उत्तर
The earth receives heat from the sun by radiation.
Explanation:
Radiation is the transfer of energy through electromagnetic waves, such as light and infrared radiation. These waves travel through the vacuum of space, without the need for a medium, and reach the Earth, where they are absorbed, warming the planet.
संबंधित प्रश्न
Why is the freezing chest in a refrigerator fitted near its top?
Give one example of heat transfer by radiation.
______ of heat does not require a medium.
Conduction of heat takes place through a ______ substance.
What are the modes of heat transfer?
Explain which mode of heat transfer causes sea breezes and land breezes.
Why are heaters fitted near the floor and air conditioners near the ceiling of a room?
When a liquid boils, energy is absorbed.
Wrap a thin paper strip tightly around an iron rod. Try to burn the paper with candle while rotating the iron rod continuously. Does it burn? Explain your observation.
Take a sheet of paper. Draw a spiral on it as shown in Figure. Cut out the paper along the line. Suspend the paper as shown in Figure above a lighted candle. Observe what happens. Think of an explanation.

