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

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

(i) Scattering
(ii) Total Internal Reflection

(iii) Interference
(iv) Principle of refraction

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Who is credited for discovery of Planetry motion___...?

(i) Nicolaus Copernicus
(ii) Darwan

(iii) Kepler
(iv) None

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Sunlight is composed of...?

(i) 6 Colours
(ii) 7 Colours

(iii) 8 Colours
(iv) 9 Colours

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Minor object in irregular shapes orbiting the sun are called...?

(i) Vessel
(ii) Asteroid

(iii) Meteors
(iv) Comet

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Largest planet of the solar system...?

(i) Mercury
(ii) Ploto

(iii) vinus
(iv) Jupiter

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The planet nearest to the sun is:...?

(i) Jupiter
(ii) Saturn

(iii) Mercury
(iv) Earth

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A chronometer meter measures...?

(i) Time
(ii) Neutron

(iii) Proton
(iv) Deutron

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The first Astronaut to set foot on moon was...?

(i) Yuri Gagarin
(ii) Edmund Hailey

(iii) Tamayo Mendez
(iv) Neil Armstrong

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The SI unit of "pressure" is:...?

(i) Pascal
(ii) Joule

(iii) Tesla
(iv) Henry

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Chronometer is used to measure...?

(i) Velocity
(ii) Pressure

(iii) Time
(iv) None of these

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