White light is normally incident on an oil film floating on water. If the oil has an index of refraction of n = 1.52 and the thickness t = 287 nm, determine the following. (a) wavelength of the light in the visible spectrum (400 nm-700 nm) most strongly reflected nm (b) wavelength of the light in the visible spectrum (400 nm-700 nm) most strongly transmitted nm Additional Materials
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A: intensity of incident unpolarised light = IoIf = 0.25 Ioθ1 = 15 degree θ2 = 50o
Q: n = 1.45
A: Refer attachment
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- Two ideal polarizing sheets are stacked so that none of the incident unpolarized light is transmitted. A third polarizing sheet is slipped between the first two sheets such that 10 percent of incident light is transmitted through the stack. Find the angle of the third polarizing sheet. 19.6 degrees O 5.8 degrees O 11.6 degrees O 39.2 degreesIf I have a light with a frequency of 5 x 10^14 what is the wave length in nm?An ideal polarizing sheet transmits 90% of the incident partially polarized light. The polarizing sheet is now rotated through 45 degrees; during the rotation process the transmitted light monotonically decreases in intensity. What fraction of the incident intensity now passes? O a. 0% O b. between 40% and 90% O c. Between 50% and 80% O d. 50% O e. Between 0 and 50%
- In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of 01 = 36° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the 56°, 02 = 28°, and 03 %3D %3D system? Number Units Use correct number of significant digits; the tolerance is +/-1 in the 2nd significant digitComponents of some computers communicate with each other through optical fibers having an index of refraction n = 1.65. What time in nanoseconds is required for a signal to travel 0.17 m through such a fiber? nsProblem 6: Suppose you have polarized light of intensity 140 W/m2. What will its intensity be after passing through a polarizing filter with its axis at an 84° angle relative to the light’s polarization direction? Give your answer in terms of mW/m2.
- 8. 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 = 17°, 02 = 45°, and 03 = 55°. A beam of light polarized along the vertical is incident onto the first polarizer with an intensity of Io = 14 W/m2. Calculate the transmitted intensity through all three polarizers. W/m2 of19 00 of1 9 oor19A beam of initially unpolarized light passes through a sequence of three ideal polarizers. The angle p12 between the axes of the first and second polarizers is 23.9°, and the angle p23 between the axes of the second and third polarizers is 58.7°. P12 P23 What is the ratio of the intensity I3 of light emerging from the third polarizer to the intensity Io of light incident on the first polarizer? I3 0.2256 Io IncorrectA beam of unpolarized light of intensity 2.17E3 W/m2 passes through a series of ideal polarizing filters with their polarizing directions turned to various angles as shown in the figure. What is the light intensity at point C (in W/m2)? Use 3 sig figs and scientific notation
- Two sheets of ideal polarizing material are placed with their transmission axes at 60.0 to each other. A third polarizing sheet is placed between them with its transmission axis at 30.0° to the axes of the other two. What is the fraction of the incident light intensity that is transmitted, when the middle sheet is removed? ___I0Unpolarized light of intensity In is incident from the left upon a set of 3 polarizers as shown in the figure below. The first and third polarizers' transmission axes are horizontally aligned, and the second polarizer has its transmission axis aligned at 45° above the horizontal. What is the intensity of the light after it passes through the third polarizer? 1 0.2510 O 0.125I0 2 어 O 0.510 O 0.75I0 O No light is transmitted through the third polarizer. 3A.) Polarized light is incident on 5 polarizing sheets. The axis of the first polarized sheet makes an angle with the plane of polarization. Each subsequent sheet has an axis that is rotated by an angle from that of adjacent sheets. Find if 40% of the incident intensity is transmitted by the sheets. B.) Suppose you want to rotate the plane of polarization of a beam of polarized light by 82°, but you do not want the final intensity to be less than 57% of the initial intensity. What is the minimum number of polarizing sheets you must use? Assume that each sheet is rotated the same angle relative to the adjacent sheets. sheets