EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 16, Problem 52P
(II) The two sources of sound in Fig. 16–15 face each other and emit sounds of equal amplitude and equal frequency (294 Hz) but 180° out of phase. For what minimum separation of the two speakers will there be some point at which (a) complete constructive interference occurs and (b) complete destructive interference occurs. (Assume T = 20°C.)
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(II) The two sources of sound in Fig. 12–16 face each other and emit sounds of equal amplitude and equal frequency (305 Hz) but 180° out of phase. For what minimum separation of the two speakers will there be some point at which (a) complete constructive interference occurs and (b) complete destructive interference occurs. (Assume ) T = 20°C
(II) The two sources of sound in Fig. 12–16 face each otherand emit sounds of equal amplitude and equal frequency(305 Hz) but 180° out of phase. For what minimum separation of the two speakers will there be some point at which(a) complete constructive interference occurs and (b) complete destructive interference occurs. (Assume ) T = 20°C.
(III) Two loudspeakers are placed 3.00 m apart, as shown in
Fig. 12–37. They emit 474-Hz sounds, in phase. A micro-
phone is placed 3.20 m distant from a point midway between
the two speakers, where an intensity maximum is recorded.
(a) How far must the microphone be moved to the right
to find the first intensity
minimum? (b) Suppose the
speakers are reconnected so
that the 474-Hz sounds they
emit are exactly out of
phase. At what positions are
the intensity maximum and
minimum now?
H3.00 m-
3.20 m
dɔ
FIGURE 12-37
Problem 54.
Chapter 16 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
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