Diffraction is evident when a wave passes
A) through a small opening.
B) the edge of an object.
C) both of these
D) neither of these
Correct Answer:
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Q9: According to Huygens' principle, every point on
Q10: The fanning out of waves upon passing
Q11: Huygens' principle applies mainly to
A)refraction of waves
Q12: The device that spreads light into its
Q13: Superposition of waves can produce
A)reinforcement.
B)cancellation.
C)partial cancellation.
D)all the
Q15: What can exist in the same place
Q16: For viewing tiny objects in a microscope,
Q17: Diffraction from foghorns is best if the
Q18: The superposition of identical waves affects
A)amplitude.
B)wavelength.
C)speed.
D)all of
Q19: A dolphin perceives greater detail by emitting
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