Understanding the Concept of Waves - High School Physics
Card 0 of 3
Two waves, each with an amplitude of 
are superimposed with constructive interference such that they are in phase. What is the resultant amplitude?
Two waves, each with an amplitude of
When two waves are superimposed, the interference can either be constructive or destructive. In this case, the interference is constructive and the waves are in phase, which means we add the amplitudes together.
Since each wave has an amplitude of 
, our new amplitude will be 
.
When two waves are superimposed, the interference can either be constructive or destructive. In this case, the interference is constructive and the waves are in phase, which means we add the amplitudes together.
Since each wave has an amplitude of
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Two waves, one with an amplitude of 
and the other of 
are superimposed with destructive interference. What is the resultant amplitude?
Two waves, one with an amplitude of
When two waves are superimposed, the interference can be either constructive or destructive. In this case the interference is destructive, which means our resultant amplitude will be the difference of the two given amplitudes.
That means our new amplitude will be 
.
When two waves are superimposed, the interference can be either constructive or destructive. In this case the interference is destructive, which means our resultant amplitude will be the difference of the two given amplitudes.
That means our new amplitude will be
Compare your answer with the correct one above
Two identical waves are superimposed with destructive interference. What will happen to the resulting wave?
Two identical waves are superimposed with destructive interference. What will happen to the resulting wave?
When two waves are superimposed with destructive interference, they cancel each other out. Since these two waves are identical, they will completely cancel each other out and there will be no wave. It will be still.
When two waves are superimposed with destructive interference, they cancel each other out. Since these two waves are identical, they will completely cancel each other out and there will be no wave. It will be still.
Compare your answer with the correct one above