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posted by  PhysFL on 11/7/2009 10:05:35 AM  |  status: Closed  |  Earned Karma: 50

Waves

Course Textbook Chapter Problem Needs by
Calculus Based Physics Principles of Physics (3rd) by Serway, Jewett N/A N/A 11/11/2009 at 8:00:00 PM
Question Details:
When two waves interfere, the amplitude of the resultant wave is always larger than the amplitudes of either of the original waves.

A)True
B)False

Hint:

We can have destructive interference.


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posted by watt (MNK) on 11/7/2009 10:15:15 AM  |  status: Live
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Response Details:
Answer is false.
If the amplitude of original waves are a  and a '  then minimum resultant amplitude = a ~    a '
Maximum resultant amplitude = a + a '
posted by christina.S on 11/7/2009 10:17:00 AM  |  status: Live
Asker's Rating: Helpful   
Response Details:
When two waves interfere, the amplitude of the resultant wave is always larger than the amplitudes of either of the original waves
.
Answer is False .
.
When two waves interfere :
.
          If constructive interference occuars , then  resultant wave is always larger than the amplitudes of either of the original waves
.
But if Destructive interference occuars , then  resultant wave is always smaller than the amplitudes of either of the original waves
.
Hope this helps u!
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