Question

Why can heat from the sun not reach us by conduction or convection?​

Answer 1

Hello mate,

For answer consider this,

We know that three modes of heat transfer are there ,

==>Conduction

==>Convection

==>Radiation.

Conduction for Solid media.

Convection for liquid media.

Radiation for air and vaccum media.

We also now that between between sun and earth only air and vaccum media are there so , the heat has only one to reach earth and that by Radiation ......okkk

Answer 2

Answer:

here's your answer, grab it

Explanation:

the heat from the sun not reaches us by conduction or convection because conduction and convection requires a medium to transfer heat but there is no medium in the space due to total vacuum show the heat from the sun reaches us by radiation. you can read the definitions of each term below. ⬇️⬇️

CONDUCTION -

conduction is a way of transferring heat in solids objects by passing The heat from particle to particle. like heat is transferred from one end to another end in an aluminium rod.

CONVECTION -

convection is a way of transferring heat in liquids and gases by the formation of convection currents by the actual movement of particles due to uneven heating. like water gets heated due to uneven heating and the formation of convection currents.

(note : this way of heat transfer also forms the cyclones and storms)

RADIATION-

Radiation is a process of transferring heat without using any medium and this method can't be completely stopped using any way. this way of transferring heat works as the heat of the sun reaches to earth in form of rays . It is the fastest mode of heat transfer.

_______THANKS________