when xavier places his hands near a light bulb, he notices that certain areas around the light bulb are…

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?\nthe areas to the sides of the light bulb are warmest because of conduction.\nthe areas to the sides of the light bulb are warmest because of convection.\nthe area directly above the light bulb is warmest because of conduction.\nthe area directly above the light bulb is warmest because of convection.
Answer
Brief Explanations:
When a light - bulb is on, it emits heat. Convection is the transfer of heat by the movement of a fluid (in this case, air). Warm air rises. So, the area directly above the light - bulb is warmest due to convection as the heated air rises. Conduction requires direct contact, and air is a poor conductor of heat. The sides of the light - bulb are not the warmest because heat transfer by convection causes the warm air to rise vertically.
Answer:
D. The area directly above the light bulb is warmest because of convection.