A ray of laser light is incident on an ice prism with the value of refractive index, n= 1.31 at a 25° angle to one face as shown in Figure 3. M & 25° E UTM 60 M UTM A & UTM M UTM i. 60° 60 Calculate the angle Figure 3 Based on the figure above, explain the propagation of light from ice prism to the ii. AUTM air medium and state the related law. 5 UTM UTM UTM M.5 5 UTM
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- = In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of 01: 33°, 02 = 25°, and 03 = 49° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system? Number Units >Light is incident from air onto the surface of a liquid. The angle of incidence is 47.0°, and the angle of refraction is 36.0°. At what angle of incidence would the reflected light be 100% polarized? Number Incident light Liquid i Reflected light Refracted light UnitsLight has a wavelength of 310.3 nm and a frequency of 5.683 × 10¹4 Hz when traveling through a certain substance. What is the refraction index of this medium? Use 2.998 × 108 m/s for the speed of light in a vacuum. Number i Units
- A life-guard wants your help choosing a pair of new sun-glasses to minimize reflections from the water. She noticed an advertisement that let one choose the angle of polarization orientation of the sunglasses. What polarization angle, if any would you advise her to choose for her new glasses. Question 6 options: A pair of polarizing sunglasses offers no advantage for a people near the water. Sunglasses with a horizontally oriented polarizer would be best for reducing ocean glare. Sunglasses with a vertically oriented polarizer would be best for reducing ocean glare.The frequency of a light wave in air is 4.6 x 1014 Hz. What is the wavelength of this wave after it enters a pool of water? A. 300 nm B. 490 nm C. 650 nm D. 870 nmQUESTION 2 Which of the following parts of the eye contains the photoreceptor cells commonly called the "rod" and "cones"? a. The optic nerve b. The fovea O c. The vitreous humour O d. The cornea e. The lens QUESTION 3 The time-averaged intensity of sunlight that is incident at the upper atmosphere of the earth is 1,380 watts/m². What is the maximum value of the electric field at this location? O a. 1,200 N/C b. 1,020 N/C C. 1,950 watts/m² d. 660 N/C O e. 840 N/C
- Unpolarized light passes through a single polarizer. Of the 100% of the light that made it through the first polarizer, how much will make it through... another polarizer, angled 30° to the first one, and then yet another polarizer, angled a further 30°. a vacuum. another polarizer, angled 30° to the first one. another polarizer, angled 90° to the first one. another polarizer, angled 45° to the first one. another polarizer, angled 45° to the first one, and then yet another polarizer, angled a further 45°. 1. 100% 2. 75% 3. 66.67% 4. 56.25% 5. 50% 6. 33.33% 7. 25% 8. 12.5% 9. 0%Light travels through water at an approximate speed of 2.25 x 108 m/s. What is the refractive index of water? A) 0.75 B) 1.33 C) 1.50 D) 2.25[Q7] Which one of the following sentences is an accurate statement about light? a. CO d. C. b. When light strikes a surface at Brewster's angle, it is completely reflected at the surface. When light strikes a surface at Brewster's angle, only the reflected light is 100% polarized. e f. When light strikes a surface at Brewster's angle, the reflected and transmitted light are 100% polarized. When light strikes a surface at the critical angle, only the reflected light is 100% polarized. When light strikes a surface at the critical angle, all the light passes through the surface None of these statements are accurate. armast cec