Optical fibre works on the principle of:...? Mcqs

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Optical fibre works on the principle of:...?

(A) Scattering
(B) Total Internal Reflection

(C) Interference
(D) Principle of refraction

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Which is the first element depicted on the Periodic Table...?

(A) Hydrogen
(B) Aluminum

(C) Oxygen
(D) Gold

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Which Muslim scientist is considered to be the founder of chemistry___...?

(A) Jabir bin Hayan
(B) Al Beroni

(C) Yaqoob Alkandi
(D) None

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Which is the oldest freezing method:...?

(A) Contact freezing
(B) Flash freezing

(C) Brine freezing
(D) None of these

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Bronze is an alloy of...?

(A) Copper and Bronze
(B) Lead and Tin

(C) Copper and Tin
(D) None of these

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Low silicon, oxygen and High iron, magnesium are the characteristics ____of magma...?

(A) Mafic and Felsic
(B) Felsic and Rhyoltic

(C) Mafic and Basaltic
(D) None of these

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Chemical formula of baking soda is ______...?

(A) Na2CO3
(B) K2CIO3

(C) Na2SO4
(D) NaHCO3

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Which of the following gases is used for refrigeration...?

(A) Chlorine
(B) Ammonia

(C) Phosphine
(D) Carbon Dioxide

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What type of acid is used in car batteries...?

(A) Hydrochloric acid
(B) Hydrofluoric acid

(C) Nitric acid
(D) Sulphuric acid

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What is Nuclear Fission...?

(A) Atom splits into two masses
(B) Small atoms join each other

(C) Helium broken into proton and electron
(D) All of these

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