Question

Light of wavelength 612 nm in a vacuum travels 1.57 pm in a medium of index of refraction 1.51. Find

**(a)** the wavelength in the medium,

(**b)** the optical path length,

(**c)** the phase difference after moving that
distance, with respect to light traveling the same distance in a
vacuum.

Answer #1

Light of wavelength λ travels through a medium with an
index of refraction n1before striking a thin film with an
index of refraction n2 at an angle of incidence of 0. Some
of the light is reflected off of and some is transmitted through
the n2 thin film. The transmitted light travels a distance
t through the thin film before encountering the
n1 medium again. Some of the light reflects off of the
n1 medium.
What is the effective path...

Light with a wavelength of 589 nm in a vacuum strikes the
surface of an unknown liquid at an angle of 31.2° with respect to
the normal to the surface. If the light travels at a speed of 1.97
× 108 m/s through the liquid, what is the angle of
refraction?

Light with a wavelength of 432 nm in vacuo travels from vacuum
to water. Find the frequency and wavelength of the light inside the
water.

assume medium 1 is a vaccuum. medium 2 has an index of
refraction n. light travels at speed v2 and (lamda)n is the
wavelength in medium 2. find the relationship between the two
mediums if frequency of medium 2 = (v) / (lamda)?

Green laser light with a wavelength of 650 nm travels towards a
photodetector.
a.How long does it take the laser to reach the photodetector
located 50 meters away?
b.What is the change in the arrival time of the light if a 1
meter block of lucite is placed along the path for the laser to
travel through? (index of refraction = 1.50)
c.What is the speed of light through the lucite?
Next, take a second laser (red) with wavelength of...

A laser produces light with a wavelength of 490 nm in vacuum. It
takes 2.85 ns for the light to pass through 45 cm of an unknown
transparent material.
a. What is the index of refraction of the material?
b. What is the wavelength of the light in the substance?
c. How long would it take for this light to pass through 45 cm
of water?

A light beam travels at 1.34×108 m/s in diamond. The
wavelength of the light in diamond is 450 nm.
For the speed of light in vacuum/air remember we use the value,
3 x 108 m/s.
a) What is the index of refraction of diamond at this
wavelength?
b) If the light ray hits the surface of the diamond
at the angle of 16.0° from the normal, at which
angle (from the normal) will it be refracted into air? (Recall the
nair =...

Light of wavelength 475 nm is incident normally on a film of water
10-4 cm thick. The index of refraction of water is
1.33.
a. What is the wavelength of the light in the water?
b. How many wavelengths are contained in the distance
2t, where t is the thickness of the film? (Do not
round your answer to a whole number.)
c. What is the phase difference between the wave reflected from
the top of the air-water interface and...

True or False?
A)Reflection is the description of the portion of a ray of light
that remains in the medium from which it originated after striking
the boundary of a different medium.
B)Refraction refers to the change in direction of the ray of
light entering a new medium.
C)The angle of incidence equals the angle of refraction.
D)Angles in optics are measured with respect to the surface.
E)The intensity of the reflected beam is greater than the
intensity of the...

Light with wavelength 700 nm travels through a vacuum (n=1). It is
normally incident upon a thin layer of oil (n=1.4), which rests
upon a thick layer of glass (n=1.5).
a) What
is the minimum thickness of oil needed to minimize the light
reflected from the oil?
b)
What is the minimum thickness of oil needed to maximize the
reflected light?

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