Question

Which of the following is not a method of transfer of heat ?

a)conduction

b)radiation

c)convection

d)convection


Please tell the option number



And explain

Answer 1

Answer:

convection

Explanation:

also convection is only posible in fluid where the particles can move easily and the rate of convective heat transfer depends on the rate of flow to a great extend . in solids the particles can rigid and cannot move So, heat is not transferred by the process of convection solids.

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Answer 2

No choice is not a heat transmission method.

conduction

• The movement of something like heat or electricity via a medium or channel is defined as conduction.
• Using a metal rod to roast marshmallows over an open fire and feeling the heat rise through the rod from the flames to your hand is an example of conduction.

radiation

• Radiation occurs when heat is transferred from one object to another as energy waves known as infrared waves.
• When heat waves collide with a cooler object, the molecules in the cooler object accelerate up.
• The object becomes hotter as the molecules of that object speed faster.

convection

• Heat is transferred via convection when a heated fluid, such as air or water, is forced to flow away from the source of heat, carrying energy with it.
• Convection happens when hot air expands, becomes less dense, and rises above a heated surface.

convection

• Heat is transferred via convection when a heated fluid, such as air or water, is forced to flow away from the source of heat, carrying energy with it.
• Convection happens when hot air expands, becomes less dense, and rises above a heated surface.