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THE PRINCIPLE OF
If two or more travelling
SUPERPOSITION waves are moving through
some medium, the resultant
wave displacement at any
point is the algebraic sum of
the individual wave
displacements.
ADD
THEM !!!
John Parkinson
St. Brendan's College…read more

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+
John Parkinson
=
St. Brendan's College…read more

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The combination of separate waves in the same
region of space to produce a resultant wave
is called INTERFERENCE
e.g. between two dippers in a Ripple Tank
DIPPERS
John Parkinson
St. Brendan's College…read more

Slide 5

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These two waves arrive
IN PHASE
HOW DO THEY
ADD UP?
+
This is called?
CONSTRUCTIVE INTERFERENCE
John Parkinson
St. Brendan's College…read more

Slide 6

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These two waves arrive in
ANTI-PHASE
HOW DO THEY
ADD UP?
+ This is called?
DESTRUCTIVE INTERFERENCE
John Parkinson
St. Brendan's College…read more

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