Two Identical Metal Bars Are Heated Up Until They Are

question 124

Multiple Choice

Two identical metal bars are heated up until they are both glowing. One of them is "red hot" and the other is "blue hot." Which one is hotter, the one that glows red or the one that glows blue?

• A) the red one
• B) the blue one
• C) We cannot tell without knowing more about the two bars.