Seeing colour - Shadow + understanding UV, IR and radiation
13 important questions on Seeing colour - Shadow + understanding UV, IR and radiation
What is diffuse light?
What is a partial shadow?
What is a full shadow?
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What is a divergent light beam?
Explain why fluorescent tubes produce few shadows on the table top.
What does a high-lying sun cause?
How can you calculate N (the magnification factor)
Where does infrared radiation lay in the electromagnetic spectrum?
How can objects that are warmer than their surroundings be seen?
Which types of rays are dangerous to the body?
Where through can X-rays travel?
Where through can gamma rays travel?
Why are gamma rays and x-rays dangerous?
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