PHYSICS
TOPIC: WAVES II
SUBTOPIC: PROPERTIES OF WAVES
RATIONALE:
When one is walking in a field across two loud speakers, it is observed that there is variation in the loudness of the sound. At some instances, you hear a very loud sound and in some instances low sound and in some cases no sound at all. In this lesson, we shall try to explain what causes the variation in the loudness of the sound as perceived by the observer.