In a single-slit diffraction experiment, the width of the slit through which light passes is reduced. What happens to the width of the central bright fringe?
A) It becomes narrower.
B) It stays the same.
C) Its behavior depends on the wavelength of the light.
D) It becomes wider.
D
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Suppose you could float in space just a few meters above Saturn's rings. What would you see as you looked down on the rings?
A) countless icy particles, ranging in size from dust grains to large boulders B) a solid, shiny surface, looking much like a piece of a Blu-ray disk or DVD (or vinyl record album) but a lot bigger C) dozens of large "moonlets" made of metal and rock, each a few kilometers across D) long, solid strings of matter, each distinct from the next
Kelli examines her new ruby ring with the jeweler's "loop". The ruby appears 7.0 times larger. If her near point is 35. cm, what is the focal length of the lens?
A) 36. mm B) 70. mm C) 67. mm D) 42. mm E) 58 mm
If the dot product of two nonzero vectors is zero, the vectors must be perpendicular to each other
A) True B) False
What are the wavelength limits, in meters, of the audible region of the sound spectrum (v = 344 m/s)?