Worksheet
Basic Principles of Refraction
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Directions:
For each True or False question, place the answer to each question in the textbox provided. If you decide that the statement as given is false, in addition to entering FALSE in the textbox, you must ALSO provide a correction to the second part of the original statement so that it will become a true fact.
Although you may "submit answers for grading" as often as you like to check your answers as you complete the worksheet, only your initial answer to each question will count towards your final score. So be careful.
True or False. (provide a correction if the statement is false)
The value for the index of refraction, n, of an optically dense medium is allowed to fall anywhere in the range between 0 < n < 1.
True or False. (provide a correction if the statement is false)
The speed of light in a vacuum is 3 x 10
^{8}
m/sec.
True or False. (provide a correction if the statement is false)
The average speed of light while traveling through a medium whose optical index of refraction is 1.5 would be 2 x 10
^{8}
m/sec.
True or False. (provide a correction if the statement is false)
A ray of orange light of wavelength 600 nm is 6.00 x 10
^{-7}
meters long.
True or False. (provide a correction if the statement is false)
The frequency of orange light of wavelength 600 nm while traveling in air would be 2 x 10
^{13}
hz.
True or False. (provide a correction if the statement is false)
While a ray of orange light (whose wavelength is 600 nm in air) is traveling through a medium whose optical index of refraction is 1.5, its wavelength would be 900 nm.
True or False. (provide a correction if the statement is false)
The frequency of orange light (whose wavelength is 600 nm in air) while traveling through a medium whose optical index of refraction is 1.5 would be 7.5 x 10
^{14}
hz.
Summary:
Mark each statement that is TRUE when light enters an optically denser medium.
its average speed decreases,
its wavelength decreases
its frequency decreases
the angle of refraction in the new medium is less than the angle of incidence in the initial medium
Diagram Questions
According to the diagram shown above, which substance, A or B, is the more optically dense medium?
A
B
According to the diagram shown to the right, which statement is false?
n
_{A}
= n
_{B}
n
_{B}
> n
_{C}
n
_{C}
< n
_{D}
n
_{D}
> n
_{A}
n
_{B}
> n
_{D}
the light exits and enters from the same medium
Which diagram shown below correctly illustrates the path of a monochromatic ray of light through a triangular piece of glass?
A
B
C
D
Which diagram shown below correctly shows the path of a light beam passing through a rectangular "air bubble" in a piece of glass?
A
B
C
D
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