Standing waves of sound are employed in a
A) guitar.
B) flute.
C) clarinet.
D) all of the above
E) none of the above
Answer: D
Physics & Space Science
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If a sheet containing a single slit is heated (without damaging it) and therefore expands, what happens to the angular location of the first-order diffraction minimum?
A) It moves away from the centerline. B) It doesn't change. C) It moves toward the centerline.
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Black light is a common name for the region of the EMR spectrum known as ______________
Fill in the blank(s) with correct word
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If the Moon is rising at midnight, the phase of the Moon must be
A) full. B) first quarter. C) third quarter. D) waning crescent. E) waxing crescent.
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Which of the following stars has a spectrum that peaks at the highest frequency?
A) a blue star B) a red star C) a yellow star
Physics & Space Science