Optical fiber works on the principle of ______...? Mcqs

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Optical fiber works on the principle of ______...?

(A) Scattering
(B) Total Internal Reflection

(C) Interference
(D) Principle of refraction

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The sunlight can reach depth of meters in the ocean...?

(A) 100 m
(B) 200 m

(C) 300 m
(D) 400 m

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What is S.I unit of temperature...?

(A) Kelvin
(B) Celsius

(C) Fahrenheit
(D) None of these

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What is the Freezing point of heavy water....?

(A) 3.82 C
(B) 1.82 C

(C) 2.82 C
(D) 0.82 C

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Fiber optics technology is being used in...?

(A) Telecommunication
(B) Electrical power control monitoring

(C) Oil and gas pipelines control and monitoring
(D) All Of Above

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Which theory revolutionized the idea of Space and Time:...?

(A) Classical field theory
(B) Classical mechanics

(C) Theory of special relativity
(D) None of these

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Why is the Ozone important for mankind...?

(A) Protection from ultraviolet rays of sun
(B) It releases oxygen in the air

(C) It maintains temperature of the earth
(D) It releases hydrogen in the atmosphere

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In order to have a very wide field of view, the mirror used in cars is...?

(A) Convex
(B) Plane

(C) Concave
(D) Bi Concave

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Electrons were discovered by...?

(A) Alarm Burg
(B) JC Bose

(C) JJ Thomson
(D) Christopher Columbus

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Magnetic tap is a ___...?

(A) Serial access medium
(B) Universal access medium

(C) Random access medium
(D) None of these

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