Which among the following is a positively charged particle emitted by a radioactive element...? Mcqs

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Which among the following is a positively charged particle emitted by a radioactive element...?

(A) Beta rays
(B) Alpha Rays

(C) Gamma rays
(D) Cathode rays

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The weight of an object at the centre of the earth of radius R is...?

(A) Same
(B) Weightless

(C) Rise a little
(D) None of these

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

(A) Pascal
(B) Joule

(C) Tesla
(D) Henry

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Phases of the moon occur because:...?

(A) we can see only that part of the moon which reflects sunlight light towards us
(B) our distance from the moon keeps changing

(C) the shadow of the Earth covers only a part of the moon’s surface
(D) None of these

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Phases of the moon occur because...?

(A) only that part of the moon which reflects light
(B) Our distance from the moon keeps changing

(C) The thickness of the moon's atmosphere
(D) The shadow of the Earth covers only a part of moon

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How many planets are in our solar system...?

(A) 6
(B) 7

(C) 8
(D) 9

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The first Canadian woman in space was...?

(A) Roberta Bonder
(B) Dirk Fremont

(C) Roberta Bondar
(D) marc Garneau

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When one acted as moderator in nuclear reactor...?

(A) Regular Water
(B) Graphite

(C) Heavy Water
(D) All Of Above

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Which from the following is true for "Sound"...?

(A) Sound cannot travel through a vacuum
(B) Sound cannot travel through gases

(C) Sound cannot travel through liquids
(D) Sound cannot travel through solids

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Metrology is the Science of:...?

(A) Atmosphere
(B) Weight and Measurements

(C) Ancient writings
(D) None of these

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