Two students in a dorm room listen to a pure tone produced by two loudspeakers that are in phase. Students A and B in Figure 28–32 hear a maximum sound. What is the lowest possible frequency of the loudspeakers?
Step 1 of 2
Here, we have to calculate the lowest possible frequency.
The equation for the path difference is,
We have to calculate the distance of the student B from the left source. Consider this as a right angled triangle of base 3.0 m and height 1.5 m.
Therefore, the hypotenuse,