You take a block of granite and heat it to 1000 degrees Kelvin, and it glows bright red. If you then heat it to 1200 Kelvin, how might it look different?
A) It would be about the same brightness but white.
B) It would be much brighter and red.
C) It would be brighter and more white.
D) None of the above; it would have melted, and once it melts, it will no longer emit.

Question

Quizplus · Accepted Answer

As the temperature increases, the color of the glow shifts towards the blue end of the spectrum, so it would become brighter and more white. It would not have melted at 1200 Kelvin as granite has a melting point of around 1215 degrees Celsius, which is much higher than 1200 Kelvin.

You Take a Block of Granite and Heat It to 1000