Wave Interference and Standing Waves
AP Physics 2 · Flashcards · Application
AP PHYSICS 2 · FLASHCARDS
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QUESTION
Determine the beat frequency for
f
1
=
256
Hz
f_1 = 256 \text{ Hz}
f
1
=
256
Hz
,
f
2
=
260
Hz
f_2 = 260 \text{ Hz}
f
2
=
260
Hz
.
QUESTION
Calculate the third harmonic for
L
=
1
m
L = 1 \text{ m}
L
=
1
m
,
v
=
340
m/s
v = 340 \text{ m/s}
v
=
340
m/s
.
QUESTION
Calculate the length of a string for a fundamental frequency of
440
Hz
440 \text{ Hz}
440
Hz
,
v
=
330
m/s
v = 330 \text{ m/s}
v
=
330
m/s
.
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ANSWER
Length
L
=
0.375
m
L = 0.375 \text{ m}
L
=
0.375
m
. Using
L
=
v
2
f
1
=
330
2
×
440
=
0.375
L = \frac{v}{2f_1} = \frac{330}{2 \times 440} = 0.375
L
=
2
f
1
v
=
2
×
440
330
=
0.375
m.
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