For viewing tiny objects in a microscope, diffraction is
A) helpful.
B) a hindrance.
C) not a factor.
Correct Answer:
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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
Q14: Diffraction is evident when a wave passes
A)through
Q15: What can exist in the same place
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
Q20: A razor blade nicely shows diffraction fringes
Q21: A thin film appears cyan when illuminated
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