Lesson 8.2 Wave Interactions Answers

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How are refraction and diffraction similar? How are they different? Check all that apply.Refraction and diffraction both involve the bending of waves.Refraction and diffraction both involve the bending of waves through a medium.Refraction and diffraction both involve the bending of waves around objects.Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.

A
Refraction and diffraction both involve the bending of waves.
B
Refraction and diffraction both involve the bending of waves through a medium.
C
Refraction and diffraction both involve the bending of waves around objects.
D
Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.
E
Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.
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Which part of the wave is changed when there is interference?

A
the amplitude
B
the crest
C
the trough
D
the wavelength
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Does the resulting wave demonstrate destructive interference? Explain your answer.

Answer:

No. The resulting wave has twice the amplitude of either original wave, so the waves combine constructively. Destructive interference would reduce the amplitude or cancel the waves.

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