Below are the answers key for the Multiple Choice Questions in Fiber Optics Communications Part 2.

51. Consumer TV

52. Greater than

53. Reflection

54. Single-mode graded-index

55. dB/km

56. 2 km

57. Modal dispersion

58. Glass

59. Cladding

60. Slower

61. No electrical safety problems

62. Wider bandwidth

63. X-rays

64. 400 to 750 nm

65. 300,000,000 m/s

66. Bending of light waves

67. Index of refraction

68. 1.3 um

69. Single-mode step-index

70. Single-mode step-index

71. Single mode step-index

72. Reflection

73. 5 mi

74. 4.57 dB

75. 29.1 dB

76. Laser

77. Infrared

78. Forward bias

79. Monochromatic

80. Coherent

81. Photovoltaic diode

82. Avalanche photodiode

83. Reverse bias

84. 400 Mbits/s

85. 3 repeaters

86. Powerful, reliable light source

87. Interference

88. Monochromatic and in-phase

89. Holography

90. 99.9999 %

91. Plastic-clad-silica

92. No fixed limit, dependent on bandwidth and mode spacing

93. Infrared absorption

94. Silica-clad-silica

95. 1960

96. Spectral response

97. Thermally generated carriers in the diode

98. Ampere/watt

99. Dispersion

100. 940 nm

#### Questions and Answers in Fiber Optics Communications Series

Following is the list of multiple choice questions in this brand new series:

**MCQ in Optical Fiber Communications**

**MCQ from Number 1 – 50**Answer key:

**PART 1**

**MCQ from Number 51 – 100**Answer key:

**PART 2**

**MCQ from Number 101 – 150**Answer key:

**PART 3**

**MCQ from Number 151 – 200**Answer key:

**PART 4**

**MCQ from Number 201 – 250**Answer key:

**PART 5**

**MCQ from Number 251 – 300**Answer key:

**PART 6**

**MCQ from Number 301 – 350**Answer key:

**included**

**MCQ from Number 351 – 400**Answer key:

**included**

**MCQ from Number 401 – 450**Answer key:

**included**

**MCQ from Number 451 – 500**Answer key:

**included**

### Complete List of MCQ in Communications Engineering per topic

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