Light And EM Waves: Question Preview (ID: 13274)


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Which of these is NOT a primary color of light?
a) red b) blue c) green d) yellow
Which of these is NOT a primary pigment?
a) cyan b) yellow c) periwinkle d) magenta
What two colors combine to make magenta?
a) yellow and red b) blue and yellow c) red and blue d) green and blue
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 goes straight through d) the ray bends away from the normal line
When a light ray passes from a slow medium to a faster one:
a) the ray bends towards the normal line b) the ray disappears c) the ray goes straight through d) the ray bends away from the normal line
Which of these types of waves has the highest frequency?
a) gamma rays b) IR c) UV d) microwaves
Which of these types of waves has the longest wavelength?
a) X-rays b) IR c) radio waves d) UV
We can see our reflection from mirrors but not from walls because
a) walls absorb all light b) mirrors create scattered (diffuse) reflections c) mirrors are made of magic d) walls create scattered (diffuse) reflections
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 at c = 3 x 10^8 m/s c) Light cannot travel in this medium d) Light traveling in this medium will travel slower than c = 3 x 10^8 m/s
What color of visible light has the highest energy?
a) green b) violet c) yellow d) red
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