1. Explain the critical angle and for the given diagram calculate the "Figure of merit" for Full angle of 270°, that too for the water medium. [2 marks] Full angle = 270° 2. Along with a neat diagram, describe the Fiber Mode that would perfectly match for the purpose of LAN's. [3 marks] 3. For a four pair UTP cable if the value of Vin= 6V, Vout= 2.25V, VNEXT1 = 3.5mv, VFEXT1= 1.75V, then find the value of FEXT1, NEXT1 and ACR in decibels and also assume the reasonable value of NEXT2, NEXT3 to find the value of PSNEXT. [2 marks] 4. With a neat diagram, describe the operation of the detector device which is less reliable. [3 marks]
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The critical angle is the angle of incidence at which light traveling from a medium with a higher refractive index to a medium with a lower refractive index is refracted along the boundary between the two media at an angle of 90 degrees. Beyond the critical angle, Show more…
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