2. A stack of polarizing sheets will rotate the direction of polarization of incident unpola each successive sheet is oriented at an angle 0 (in the desired direction) with re previous sheet. Using 9 ideal sheets to produce a 90° rotation, determine the maximur of the incident, unpolarized light intensity I, that will be transmitted through the tenth

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5. Three polarizing disks whose planes are parallel and centered on common axis. The directions of their transmission axes relative to the vertical are respectively: 01 = 34° clockwise, 0₂ = 22º counter-clockwise, and 03 = 23º clockwise. A beam of light polarized along the vertical is incident onto the first polarizer with an intensity of Io = 38.0 W/m². Calculate the transmitted intensity through all three polarizers. W/m²

..54 Dispersion in a window pane. In gle e Fig. 33-54, a beam of white light is incident at an- 50° on a common window pane (shown in cross section). For the pane's type of glass, the index of refraction for visible light ranges from 1.524 at the blue end of the spectrum to 1.509 at the red end. The two sides of the pane are paral- lel. What is the angular spread of the colors in the beam (a) when the light enters the pane and (b) when it emerges from the opposite side? (Hint: When you look at an object through a window pane, are the colors the light from the object dispersed as shown in, say, Fig. 33-20?) = Ꮎ Figure 33-54 Problem 54.

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The ratio If/lo is maximized when polarizer X is rotated so its polarization axis is 45° different from that of polarizer A (that is, when OAx is 45°). What is this maximum intensity ratio?

The next few questions challenge you to figure out the acceleration due to gravity ( g ) on various hypothetical alien planets. On Planet #1, you drop a stone from rest, 63.8 m above the ground, and the stone hits the ground 3.88 s later. What is the value of g on Planet #1?     16.44 m/s^2     32.89 m/s^2     8.48 m/s^2     4.24 m/s^2

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