Author Question: Two point sources emit sound waves of 1.0-m wavelength. The sources, 2.0 m apart, as shown below, ... (Read 119 times)

burchfield96 · **on:** Jul 28, 2018

Two point sources emit sound waves of 1.0-m wavelength. The sources, 2.0 m apart, as shown below, emit waves which are in phase with each other at the instant of emission. Where, along the line between the sources, are the waves out of phase with each other by radians?

a.
x = 0, 1.0 m, 2.0 m

b.
x = 0.50 m, 1.5 m

c.
x = 0.50 m, 1.0 m, 1.5 m

d.
x = 0.75 m, 1.25 m

e.
x = 0.25 m, 0.75 m, 1.25 m, 1.75 m

Question 2

The path difference between two waves is 5 m. If the wavelength of the waves emitted by the two sources is 4 m, what is the phase difference (in degrees)?

a.
90

b.
400

c.
1.57

d.
7.85

e.
15