Light - Deviation - Index of Refraction - Snell's Law Flashcards
A group of rays emitted from a single small point on a light source, it requires a larger hole in the second screen:
a. Beam
b. Pencil
c. Photon
d. Ray
Pencil
We use the acronym ROY G BIV to help remember the order of colors. It lists colors from:
a. Long wavelength (around 700nm) to short wavelength (around 400nm)
b. Short wavelength (around 400nm) to long wavelength (Around 700nm)
Long wavelength (around 700nm) to short wavelength (around 400nm)
Which wave length of ultra-violet radiation is absorbed by the ozone layer?
a. UV-A
b. UV-B
c. UV-C
UV-C
The bending or redirection of a light wave when it passes a barrier without changing the medium in which it is traveling is called:
a. Dispersion
b. Diffraction
c. Reflection
d. Refraction
Diffraction
When a light ray travels from one transparent medium to another, it changes direction. This bending of light, which results from the differences in density of different transparent materials, is called:
a. Dispersion
b. Diffraction
c. Refraction
d. Reflection
Refraction
When a ray of light travels from one material to another, if its direction of travel is perpendicular or normal to the interface or junction between the materials, it will _____.
a. bend away from the normal
b. change speed but not direction
c. bend toward the normal
change speed but not direction
When a ray of light travels from a less dense (faster) material to a more dense (slower) material at an angle to the normal, it will ____.
a. bend away from the normal
b. change speed but not direction
c. bend toward the normal
bend toward the normal
When a ray of light travels from a more dense (slower) material to a less dense (faster) material at an angle to the normal, it will _____.
a. bend away from the normal
b. change speed but not direction
c. bend toward the normal
bend away from the normal
When a ray of light leaves the crown glass, its angle with the normal to the surface is only 8 degrees. If it has an angle of refraction of 12 degrees, what is the angle of deviation when it leaves the glass?
a. 4 degrees
b. -4 degrees
-4 degrees
If a ray of light is incident on a material at an angle of 18 degrees, and it is deviated by 7 degrees, what is its angle of refraction?
a. 7 degrees
b. 11 degrees
c. 18 degrees
d. 25 degrees
11 degrees
When a ray of light travels from a more dense medium to a less dense medium, r is greater than i and d is negative.
a. False
b. True
False
When a ray of light travels from a less dense medium to a more dense medium, r is less than i and d is positive.
a. False
b. True
True
A ray of light travels from one material to another. The angle of incidence is 45 degrees and the angle of refraction is 65 degrees. What is the angle of deviation?
a. -20 degrees
b. 20 degrees
-20 degrees
A ray light is deviated by -10 degrees from its path when it passes from one material into another material. If it was originally traveling at an angle of 29 degrees to the normal, it is _______.
a. traveling into the denser material
b. exiting the denser material
exiting the denser material
A ray of light traveling from air into crown glass (1.523) strikes the surface at an angle of 30 degrees. What will the angle of refraction be?
a. 15 degrees
b. 19 degrees
c. 25 degrees
d. 41 degrees
19 degrees
If light travels through a liquid at 140,000 miles per second, what is the index of the liquid?
a. 1.32
b. 1.46
c. 2.15
d. 2.34
1.32
If light traveling through air encounters a second medium which slows the light to 100,000 miles per second, what is the index of he second medium?
a. 1.10
b. 1.66
c. 1.86
d. 2.10
1.86
What is the index of refraction of a refractive medium if the angle of incidence in air is 30 degrees and the angle of refraction is 15 degrees?
a. 1.00
b. 1.50
c. 2.00
d. 2.25
2.00
What is the angle of refraction in water if the angle of incidence in air is 40 degrees?
a. 20 degrees
b. 29 degrees
c. 45 degrees
d. 60 degrees
29 degrees
What is the index of refraction of a liquid if the angle of incidence in air is 35 degrees and the angle of refraction is 14 degrees?
a. 1.33
b. 1.42
c. 2.00
d. 2.37
2.37
A ray of light exits from a material with an index of 1.80, traveling into air. If the angle of refraction is 20 degrees, what was the original angle of incidence?
a. 11 degrees
b. 20 degrees
c. 29 degrees
d. 38 degrees
11 degrees
A ray of light exits from a material with index of 1.00, traveling into water (1.33). If the angle of refraction is 20 degrees, what was the original angle of incidence?
a. 20 degrees
b. 27 degrees
c. 39 degrees
d. 45 degrees
27 degrees
Which formula is used for calculating angle of deviation?
a. N1 sin i = N2 sin r
b. angle i = angle r
c. i = r +d
d. Speed of light in air/speed of light in medium
i = r +d
Which formula is used for calculating index of refraction?
a. N1 sin i+ N2 sin r
b. angle i = angle r
c. i = r +d
d. Speed of light in air/speed of light in medium
Speed of light in air/speed of light in medium
Which formula is used for calculating angle of refraction?
a. N1 sin i+ N2 sin r
b. angle i = angle r
c. i = r +d
d. Speed of light in air/speed of light in medium
N1 sin i+ N2 sin r
