Question 1 Not yet answered Marked out of 20.00 P Flag question [20 points) An optical fiber consists of a core made of

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Question 1 Not Yet Answered Marked Out Of 20 00 P Flag Question 20 Points An Optical Fiber Consists Of A Core Made Of 1 (39.4 KiB) Viewed 11 times

Question 1 Not Yet Answered Marked Out Of 20 00 P Flag Question 20 Points An Optical Fiber Consists Of A Core Made Of 2 (34.09 KiB) Viewed 11 times

Question 1 Not yet answered Marked out of 20.00 P Flag question [20 points) An optical fiber consists of a core made of flint glass (n.core = 1.67) surrounded by a cladding made of crown glass (ncladding = 1.53). A ray of light in the air enters the fiber at an angle 0, with respect to the normal, it passes through the core and hits the core cladding interface with 0 (critical angle) to produce a total internal reflection at the core-cladding interface as shown in the following figure Cladding Air Core 82 A. (5 points) Find the critical angle , for the core- cladding interface. 0 = B. [5 points) If 0. = 67, calculate the angle 02. 02 = C. [1 point] Using the formula sheet, which formula can be used to calculate the angle of incidence 0,?

D. [1 point] If 02 = 22°, the angle of incidence 01 will be given by: 1.67xsin(22) sin 1xsin(22) 1.53 sin-1 ( 1.53xsin(22) 1 sin E. [3 points] If 02 = 22°, calculate the angle of incidence 01. 01 F. [5 points] If the angle of incidence 01 = 53°, will the ray of light undergo total internal reflection at the core-cladding interface? OYes ONo

Question 2 Not yet answered Marked out of 20.00 P Flag question [20 points] As shown in the figure, a searchlight mounted on a boat is at a height c = 2.5 [m] above the water surface. The light beam strikes the water (nwater = 1.3) at a horizontal distance b = 7 [m] from the spotlight. The depth of the water is a = 3 [m] A. [5 points) At what angle of incidence the light ray strikes the water? 0,= B. (2 points) Which formula can be used to calculate the angle of refraction 0,? C. [3 points) If 0, = 73°, calculate the angle of refraction 02 02 -

D D. [5 points] If 0, = 73° and O2 = 50°, what is the deviation angle op for this light incident from air into water? Op = өр E. [5 points] If 02 = 50°, determine d, the horizontal distance between the searchlight and the point where the light strikes the bottom. d = m