Question

the picture below shows the metal coils of a stove top. when the stove is turned on, how do the metal coils change?
a. they get smaller.
b. they become a reddish color.
c. they can no longer be seen.
d. they take the shape of their container.

Explanation:

When a stove is turned on, the metal coils heat up and emit thermal radiation. At high - enough temperatures, they glow with a reddish color due to incandescence. There is no significant change in size (they don't get smaller), they are clearly visible, and they don't take the shape of a container.

Answer:

B. They become a reddish color.