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Light And EM Waves
Test Description: Types of EM waves, color, reflection, and index of refraction
Instructions: Answer all questions to get your test result.
1) Which of these is NOT a primary color of light?
A
red
B
yellow
C
blue
D
green
2) Which of these is NOT a primary pigment?
A
cyan
B
magenta
C
yellow
D
periwinkle
3) What two colors combine to make magenta?
A
yellow and red
B
blue and yellow
C
red and blue
D
green and blue
4) When a light ray passes from a fast medium to a slower one, the ray bends
A
the ray bends towards the normal line
B
the ray disappears
C
the ray bends away from the normal line
D
the ray goes straight through
5) When a light ray passes from a slow medium to a faster one:
A
the ray bends away from the normal line
B
the ray goes straight through
C
the ray disappears
D
the ray bends towards the normal line
6) Which of these types of waves has the highest frequency?
A
microwaves
B
gamma rays
C
IR
D
UV
7) Which of these types of waves has the longest wavelength?
A
radio waves
B
X-rays
C
UV
D
IR
8) We can see our reflection from mirrors but not from walls because
A
walls absorb all light
B
mirrors create scattered (diffuse) reflections
C
walls create scattered (diffuse) reflections
D
mirrors are made of magic
9) If a medium has an index of refraction of 1.5, which of the following will occur?
A
Light traveling in this medium will travel faster than c = 3 x 10^8 m/s
B
Light traveling in this medium will travel slower than c = 3 x 10^8 m/s
C
Light cannot travel in this medium
D
Light traveling in this medium will travel at c = 3 x 10^8 m/s
10) What color of visible light has the highest energy?
A
green
B
yellow
C
violet
D
red
*select an answer for all questions
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