HW 4 answers (1)

HW 4 answers (1) - 1. 

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Unformatted text preview: 1.  Calculate
the
frequency,
energy
in
joules,
and
energy
in
 eV
of
an
X‐ray
photon
with
a
wavelength
of
 6.24
Å.
 ν
=
5.0
x
1017
s‐1
 E
=
3.19
x
10‐16
J
=
2.0
x
103
eV
 2.
 When
 the
 D
 line
 of
 sodium
 light
 impinges
 an
 air‐diamond
 interface
 at
 an
 angle
 of
 incidence
 of
 30.0
 degrees,
the
angle
of
refracNon
is
11.9
degrees.
What
is
nD
for
diamond?
 ndia
=
2.42
 3.
Cs
is
used
extensively
in
photocells
and
in
television
cameras
because
it
has
the
lowest
ionizaNon
energy
 of
all
the
stable
elements.
 What
is
the
maximum
KE
of
a
photoelectron
ejected
from
Cs
by
555
nm
light?
Note
that
if
the
wavelength
 of
the
light
used
to
irradiate
the
Cs
surface
becomes
longer
than
660
nm,
no
photoelectrons
are
emiTed.
 KE
=
hν
–
work
funcNon
 KE
=
5.68
x
10‐20
J
 4.
Convert
the
following
percent
transmiTance
data
into
absorbance:
 29.9,
86.1,
2.97
 A
=
‐log
T
 A
=
0.52,
0.065,
and
1.53
 ...
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