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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Water drops are spherical because of...?

(A) Air pressure
(B) Density

(C) Viscosity
(D) Surface tension

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Ozone layer protect us from the harmful _______ of the Sun....?

(A) Heat
(B) Cold

(C) Ultraviolet rays
(D) None of these

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Every action has reaction which are equal but in opposite direction, This law is called...?

(A) Newton's First Law of motion
(B) Newton's Second Law of motion

(C) Newton's Third Law of motion
(D) None of these

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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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Far Sightedness can be corrected by:...?

(A) Convex lens
(B) Concave lens

(C) Bi Focal lens
(D) None of these

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The SI unit of energy is...?

(A) Kelvin
(B) Joule

(C) Temperature
(D) Mole

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Existence of an element in more than one form in the same physical state is called:...?

(A) Allotropic
(B) Pleiotropy

(C) Heterotrophy
(D) None of these

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Wind blowing in a spiral form around a region of low atmospheric pressure is a:...?

(A) Tornado
(B) Cyclone

(C) Hurricane
(D) Anti-cyclone

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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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