What did Marie Curie invent...? Mcqs

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What did Marie Curie invent...?

(A) X-rays
(B) Radium and Polonium

(C) Penicillin
(D) Insulin

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Hydrometer is used to measure...?

(A) Acidity of water
(B) Specific gravity of a liquid

(C) Pollution in water
(D) Gravity of milk

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Which of the following colours are primary colours...?

(A) Red, Blue , Green
(B) Red, Blue , black

(C) Red, Blue , White
(D) Red, Blue , Orance

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How many satellites (moons) of Saturn planet...?

(A) 35
(B) 62

(C) 45
(D) 23

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A rocket needs the speed of .......... to escape from earth's gravity...?

(A) 22 miles per second
(B) 15 miles per second

(C) 12 miles per second
(D) 7 miles per second

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The brightest planet in the solar system is...?

(A) Satrun
(B) Venus

(C) Neptune
(D) Mars

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The "Law of Gravitation" was discovered by _____...?

(A) Isaac Newton
(B) Thomas Aiva Edison

(C) Hug Chavez
(D) Guhlielmo Marconi

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Capacitor is used for:...?

(A) Store electrical energy
(B) Vary the resistance

(C) Store magnetic energy
(D) Dissipate energy

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Air is a mixture of _______...?

(A) Solid
(B) Liquid

(C) Gas
(D) None of these

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Chronometer is used to measure...?

(A) Velocity
(B) Pressure

(C) Time
(D) None of these

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