At a Location That Is 3

Multiple Choice

At a location that is 3.00 m from wave source A and 4.20 m from wave source B, constructive interference occurs. Source A and source B are coherent and in phase. What is the maximum wavelength of the waves?

A) 2.40 m
B) 12.6 m
C) 0.60 m
D) 1.20 m
E) There is no maximum wavelength.