Exam
Name___________________________________
MULTIPLE
CHOICE.
Choose
the
one
alternative
that
best
completes
the
statement
or
answers
the
question.
1) A
transverse
wave
is
propagated
in
a
string
stretched
along
the
x

axis.
The
equation
of
the
wave,
in
SI
units,
is
given
by:
y
=
0.001
cos
π
(47
t

17
x
).
The
amplitude
of
the
wave,
in
SI
units,
is
closest
to:
A) 0.001
x
17
π
B) 0.001
π
C) 0.001
D) 0.001
π
/17
E) 0.001
x
17
1)
2) A
transverse
wave
is
propagated
in
a
string
stretched
along
the
x

axis.
The
equation
of
the
wave,
in
SI
units,
is
given
by:
y
=
0.006
cos
π
(46
t

12
x
).
The
frequency
of
the
wave,
in
SI
units,
is
closest
to:
A) 46
B) 100
C) 69
D) 23
E) 140
2)
3) A
transverse
wave
is
propagated
in
a
string
stretched
along
the
x

axis.
The
equation
of
the
wave,
in
SI
units,
is
given
by:
y
=
0.005
cos
π
(38
t

14
x
).
The
wave
speed,
including
the
sense
of
direction
along
the
x

axis,
in
SI
units,
is
closest
to:
A) 0.37
B)

0.37
C)

2.7
D) 2.7
E) zero
3)
4) A
transverse
wave
is
propagated
in
a
string
stretched
along
the
x

axis.
The
equation
of
the
wave,
in
SI
units,
is
given
by:
y
=
0.006
cos
π
(22
t

16
x
).
The
propagation
constant
of
the
wave,
in
SI
units,
is
closest
to:
A) 8.0
B) 50
C) 32
D) 16
E) 22
4)
5) A
transverse
wave
is
propagated
in
a
string
stretched
along
the
x

axis.
The
equation
of
the
wave,
in
SI
units,
is
given
by:
y
=
0.002
cos
π
(52
t

15
x
).
The
maximum
velocity
of
a
particle
on
the
string,
in
SI
units,
is
closest
to:
A) 0.64
B) 0.53
C) 0.43
D) 0.33
E) 0.74
5)
6) A
string,
90
cm
long
and
having
a
mass
of
93
g,
is
attached
to
a
730

Hz
vibrator
at
one
end.
The
other
end
of
the
string
is
Fxed
and
the
string
is
kept
under
tension.
The
vibrator
produces
a
transverse
wave
in
the
string,
whose
amplitude
is
3.0
mm,
and
that
propagates
with
a
velocity
of
76
m/s.
The
energy
of
the
wave
is
absorbed
at
the
Fxed
end.
In
this
situation,
the
propagation
constant
of
the
wave,
in
SI
units,
is
closest
to:
A) 9.6
B) 48
C) 19
D) 60
E) 30
6)
7) A
string,
80
cm
long
and
having
a
mass
of
61
g,
is
attached
to
a
660

Hz
vibrator
at
one
end.
The
other
end
of
the
string
is
Fxed
and
the
string
is
kept
under
tension.
The
vibrator
produces
a
transverse
wave
in
the
string,
whose
amplitude
is
5.0
mm,
and
that
propagates
with
a
velocity
of
32
m/s.
The
energy
of
the
wave
is
absorbed
at
the
Fxed
end.
In
this
situation,
the
tension
in
the
string,
in
SI
units,
is
closest
to:
A) 87
B) 78
C) 75
D) 84
E) 81
7)
1