Explore BrainMass

Explore BrainMass

    Interference of 2 Waves.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Two loudspeakers are placed side by side a distance d=4.00m apart. A listener observes maximum constructive interference while standing in front of the loudspeakers, equidistant from both of them. The distance from the listener to the point halfway between the speakers is l=5.00m.

    One of the loudspeakers is then moved directly away from the other. Once the speaker is moved a distance r=60cm from its original position, the listener, who is not moving, observes destructive interference for the first time.

    The attached picture shows the situation described. The upper speaker is initially at the same distance from the listener as the other speaker. Then it is moved a distance r=60cm. The dashed outline represents its new position. (Note that the distance, r1, between the listener and the speaker has not moved, whereas, r2, the distance between the listener and the speaker has moved.)

    Calculate r1 and r2 (to 4 significant figures)

    r1 = _________________m
    r2 = _________________ m

    © BrainMass Inc. brainmass.com October 10, 2019, 5:20 am ad1c9bdddf


    Solution Preview

    Note that the triangles and are right triangles with their ...

    Solution Summary

    The interference of two waves are examined. The observed destructive interference for the first time is analyzed.