Why are sound waves not polarizable?
a. Because they are not electromagnetic. b. They are not transverse.
c. They are not longitudinal.
d. But this is readily possible!
B
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At what rate are photons emitted by a 50. W sodium vapor lamp? (Assume that the lamp's light is monochromatic and of wavelength 589. nm.)
What will be an ideal response?
The bombs used against Japan were
A) two plutonium bombs. B) two fusion bombs. C) two uranium bombs. D) an fission bomb and a fusion bomb. E) a uranium bomb and a plutonium bomb.
What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures?
A) 8 B) 7.6 C) 7.62 D) 7.616 E) 7.6160
According to the sign conventions in the book, which objects have a negative focal length?
A. Nothing has a negative focal length B. Diverging lens and converging mirror C. Diverging lens and diverging mirror D. Converging lens and diverging mirror