Explain conduction, convection and radiation with examples.
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Answered by
46
CONVECTION......
It is the process through which liquids and gases transfer heat through convectional currents and become hot throughout the beaker.
eg..heating of water in a beaker through burner
RADIATION........
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
eg.....electromagnetic radiation, such as radio waves,
CONDUCTION......
It is the process in which heat is transferred within solids through a medium.
eg....A radiator is a good example of conduction
It is the process through which liquids and gases transfer heat through convectional currents and become hot throughout the beaker.
eg..heating of water in a beaker through burner
RADIATION........
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
eg.....electromagnetic radiation, such as radio waves,
CONDUCTION......
It is the process in which heat is transferred within solids through a medium.
eg....A radiator is a good example of conduction
Answered by
21
CONDUCTION: IT IS A MODE OF TRANSFER OF HEAT IN WHICH WITHOUT MOVEMENT OF PARTICLES ENERGY TRANSFERS FROM ONE PARTICLE TO THE OTHER.
EX: SUPPOSE ONE END OF A METAL ROD IS PUT IN A FLAME, THE OTHER END OF THE ROD WILL SOON BE SO HOT THAT YOU CANNOT HOLD IT BY YOUR BARE HANDS.
CONVECTION : IT IS A MODE OF HEAT TRANSFER BY ACTUAL MOTION OF A BODY. IT IS POSSIBLE ONLY IN FLUIDS.
EX: WHEN FLUID IS HEATED FROM BELOW, THE HOT PART EXPANS AND THERFORE BECOMES LESS DENSE.
RADIATION : THE HEAT TRANSFER NEEDS NO MEDIUM IT IS CALLED RADIATION.
EX: IN AN ELECTROMAGNETIC WAVE ELETRIC AND MAGNETIC FIELDS OSCILLATE IN SPACE AND TIME.
HOPE THIS IS USEFUL............
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