1231
Chapter 16
Superposition and Standing Waves
Conceptual Problems
*1
••
Picture the Problem
We can use the speeds of the pulses to determine their positions at
the given times.
2
••
Picture the Problem
We can use the speeds of the pulses to determine their positions at
the given times.
3
•
Determine the Concept
Beats are a consequence of the alternating constructive and
destructive interference of waves due to slightly different frequencies. The amplitudes of
the waves play no role in producing the beats.
correct.
is
)
(
c
4
•
(
a
) True. The harmonics for a string fixed at both ends are integral multiples of the
frequency of the fundamental mode (first harmonic).
(
b
) True. The harmonics for a string fixed at both ends are integral multiples of the

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