The refractive index n of a substance is a dimensionless measure of how much light bends (refracts) when passing from one medium to another. n = c v where c is the speed of light in a vacuum (a constant) and v is the speed of light in the medium. For example, the refractive index of diamond is 2.42 which means that light travels 2.42 times as fast in a vacuum as it does in a diamond. Snell's law is an equation that relates the indices of refraction of two different mediums to the angle of incidence θ 1 and angle of refraction θ 2 . Angles θ 1 and θ 2 are measured from a line perpendicular to the boundary between the two mediums. Use this relationship and the table of refraction indices to complete Exercises 93-94. n 1 s i n θ 1 , = n 2 sin θ 2 If a beam of light traveling through air enters a sapphire at an angle of incidence of 23 ∘ , what is the angle of refraction? Round to the nearest tenth of a degree.
The refractive index n of a substance is a dimensionless measure of how much light bends (refracts) when passing from one medium to another. n = c v where c is the speed of light in a vacuum (a constant) and v is the speed of light in the medium. For example, the refractive index of diamond is 2.42 which means that light travels 2.42 times as fast in a vacuum as it does in a diamond. Snell's law is an equation that relates the indices of refraction of two different mediums to the angle of incidence θ 1 and angle of refraction θ 2 . Angles θ 1 and θ 2 are measured from a line perpendicular to the boundary between the two mediums. Use this relationship and the table of refraction indices to complete Exercises 93-94. n 1 s i n θ 1 , = n 2 sin θ 2 If a beam of light traveling through air enters a sapphire at an angle of incidence of 23 ∘ , what is the angle of refraction? Round to the nearest tenth of a degree.
The refractive index
n
of a substance is a dimensionless measure of how much light bends (refracts) when passing from one medium to another.
n
=
c
v
where
c
is the speed of light in a vacuum (a constant) and
v
is the speed of light in the medium. For example, the refractive index of diamond is 2.42 which means that light travels 2.42 times as fast in a vacuum as it does in a diamond.
Snell's law is an equation that relates the indices of refraction of two different mediums to the angle of incidence
θ
1
and angle of refraction
θ
2
. Angles
θ
1
and
θ
2
are measured from a line perpendicular to the boundary between the two mediums. Use this relationship and the table of refraction indices to complete Exercises 93-94.
n
1
s
i
n
θ
1
,
=
n
2
sin
θ
2
If a beam of light traveling through air enters a sapphire at an angle of incidence of
23
∘
, what is the angle of refraction? Round to the nearest tenth of a degree.
2. [-/4 Points]
DETAILS
MY NOTES
SESSCALCET2 7.3.002.
Let S be the solid obtained by rotating the region shown in the figure about the y-axis. (Assume a = 6 and b = 2.)
ASK YOUR TEACHER
0
y = a sin(bx²)
Sketch a typical approximating shell.
y
6
4
2
x
π/b
y
2
1
x
0.5
1.0
1.5
0.2
0.4
0.6
0.8
1.0
-2
-1
-4
The graph of f', the derivative of f, is shown in the graph below. If f(-9) = -5, what is the value of f(-1)?
y
87 19
6
LO
5
4
3
1
Graph of f'
x
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1
1
2
3
4 5
6
7 8 9 10
-1
-2
-3
-4
-5
-6
-7
-8
564%
Elementary Statistics: Picturing the World (7th Edition)
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