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Answer:
~REFRACTION
EXPLANATION
● refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed.
EXAMPLES
● waves travel faster in deep water than in shallow.
~DIFFRACTION
EXPLANATION
● the spreading of waves around obstacles.
EXAMPLES
● the closely spaced tracks on a CD or DVD act as a diffraction grating to form the familiar rainbow pattern seen when looking at a disc.
Explanation:
HOPE ITS HELP,SORRY PO ALANG REFLECTION.GODBLESS❤