When an Electric Stove Element Is Hot Enough, It Gives

Multiple Choice

When an electric stove element is hot enough, it gives off a dull red glow. When it cools to the point that it no longer glows, it will

A) emit only shorter wavelength energy.
B) emit the same wavelength as before, but with less energy.
C) emit only longer wavelength energy.
D) stop emitting energy altogether.