The twelve constellations through which the Sun passes are signs of the ________
Fill in the blank(s) with correct word
zodiac
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Three flat layers of transparent material are stacked upon one another. The top layer has index of refraction n1, the middle has n2 and the bottom one has n3 . If n1 < n2 < n3, at what angle of incidence will a ray of light traverse the three layers in a single straight line?
a. ?i = sin–1(1/n1) b. ?i = sin–1(1/(n1+n2+n3) c. ?i = tan–1(1/(n1+n2+n3) d. There is such an angle, but it is not given.
A beam splitter in a Michelson interferometer is
A) an extremely sharp knife edge. B) two transparent pipes. C) a half-silvered mirror. D) made of two mirrors. E) made of three mirrors.
Vectors V1 and V2 are orthogonal. If V1 is (5i + 7j - 3k) and V2 = (7i + Vy j + 14k), then component Vy in vector V2 is:
(A) 3.6 (B) 1.0 (C) -5.2 (D) 2.7
The characteristic that distinguishes fermions from bosons is
A) their mass. B) their electric charge. C) their spin. D) their size. E) their speed of travel.