One phenomenon that demonstrates the wave nature of light is:
a. the photoelectric effect.
b. quantization effects.
c. absorption of light by an electron.
d. interference effects.
d
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Describe the possible history of a typical Plutino as astronomers now believe it occurred
What will be an ideal response?
Silicates
a. are minerals. b. contain silicon and oxygen. c. consist of tetrahedra. d. all of the above.
How many nodes does a standing wave in a string have at the frequency of the sixth harmonic?
a. 12 c. 3 b. 6 d. The answer is not given.
Which of the following tests would probably not be successful for a brittle ceramic material?
(a) Three-point bend test (b) Tensile test with a standard tensile-test specimen, as shown in Figure 6.15a (c) Tensile test with a dog-bone specimen, as shown in Figure 6.26 (d) Compression test with a cylinder of ceramic