NA TS [8701}: Understanding Colour
Assignment 1: Light Pan 1
PART A: LIGHT AND THE EM SPECTRUM
1. a) List which of the section(s) of the EM spectrum are likely to inﬂict damage to human tissue, if
exposed directly to it? Provide an example
When a photon interacts with an atom, what changes occur in the atom?
a. An electron changes its orbital.
b. The photon becomes trapped in orbit.
c. The nucleus begins to glow.
d. The atomic number increases.
The correct a
Compare two EM waves of different wavelengths: 100nm and 300nm. Which of these is more
a. Both carry equal amounts of energy.
b. Both have zero energy.
c. 100nm wave
d. 300nm wave
The correct answer is: 100nm wav
Reading Quiz #1
What was Keplers main contribution to the study of optics and vision?
a. A first complete description of the anatomy and function of the human eye.
b. His famous laws of planetary motion.
c. The idea that colours of the spectru
Which of these stars is hottest?
d. All stars have equal temperatures
The correct answer is: A
In which of the following three physical locations in the Sun, shown below, would