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Diffraction
________ is the bending of waves around obstacles.
Law of reflection
________: The angle that the incoming ray makes with a flat mirror is always the same as the angle it is reflected at.
ultrasound scanner
A(n) ________ can be used to examine the inside of a patient.
There are 2 types of waves
TRANSVERSE & LONGITUDINAL
Ultrasounds are sounds above the range of human hearing (20 Hz
20,000 Hz)
Law of reflection
The angle that the incoming ray makes with a flat mirror is always the same as the angle it is reflected at
Note 
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