Analysis
The requirement on Rudolf's nose is straightforward; it has
to meet a brightness minimal value so a good
polish is the first step to achieve
that requirement. The only complication? The measurement indicated that Rudolf
has a touch of blue in the glow of his red nose. Nevertheless, the elves expect
their best practice polishing procedure will still let everyone say that it
really glows.
From a learning perspective, the only (and admittedly
missing in the original puzzle graph) information required is which of the spectrum
peeks is the red light. That background knowledge needed is the fact that blue
light is a higher frequency light. Of course, besides forcing the students to
deal with a "double negative" answer, the puzzle provides another
opportunity to review the properties of light which is always a valuable
exercise for students to do.
Question:
Rudolf’s nose does not have to be polished. Yes or No
Answer: NO
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