An ideal polarizer is placed in a beam of unpolarized light and the intensity of the transmitted light is 1.000. A second ideal polarizer is placed in the beam with its referred direction rotated 40 to that of the first polarizer.
What is the intensity of the beam after it has passed through both polarizers? A) 0.7661
B) 0.4131
C) 0.5868
D) 0.6431
E) 0.5000
Question 2Which kind of interstellar spacecraft collects its fuel during its passage?
A) interstellar ark
B) matter-antimatter rocket
C) solar sail
D) interstellar ramjet
Question 3Two uniform solid spheres have the same mass, but one has twice the radius of the other. The ratio of the larger sphere's moment of inertia to that of the smaller sphere is
A) 9/5.
B) 8/5.
C) 4/5.
D) 4.
E) 2.
Question 4A ray of light traveling in water (n = 1.33 ) hits a glass surface (n = 1.50). At what angle, with the surface, must the incident ray be in order that the polarization of the reflected ray is the greatest?
A) 53.1
B) 33.7
C) 36.9
D) 41.6
E) 48.4
Question 5Assuming the Earth's orbital angular momentum is quantized, estimate its angular momentum quantum number (l).
A) 3 1074
B) 3 1044
C) 3 1024
D) 3 10-34
E) 3 10-44
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