Question

When Xavier places his hands near a light bulb, he notices that certain areas around the light bulb are warmer than others. Which best explains this? The areas to the sides of the light bulb are warmest because of conduction. The areas to the sides of the light bulb are warmest because of convection. The area directly above the light bulb is warmest because of conduction. The area directly above the light bulb is warmest because of convection.

Answer 1

Answer:

side is radiation

above is convection

Explanation:

Radiation is a process where the heat comes out in all possible direction. As of now, bulb is a spherical thing so it radiates spherically. This is the reason of getting in sides of bulb

(Conduction never takes place as conduction requires a medium)

in second case, convection also happens in a medium. Here the medium is air which is above the bulb. Warm air from bulb goes up like convection currents in water. So it feels hot there.

Hope it helps..