Earth completes one rotation on its axis in...? Mcqs

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Earth completes one rotation on its axis in...?

(A) 23 hours and 30 minutes
(B) 23 hours 56 minutes and 4.9 seconds

(C) 24 hours
(D) 24 hours 1 minute and 10 seconds

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Electrons were discovered by...?

(A) Alarm Burg
(B) JC Bose

(C) JJ Thomson
(D) Christopher Columbus

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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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Which one of the following is unit of length:...?

(A) Joule
(B) Angstrom

(C) Newton
(D) Dalton

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The sunlight can reach depth of meters in the ocean...?

(A) 100 m
(B) 200 m

(C) 300 m
(D) 400 m

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The theory stating that new matter is always created to fill the space left by the Universe is called...?

(A) Big Bang
(B) Steady State

(C) Hubble's Theory
(D) Black Hole

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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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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 area is known as World's earthquake belt...?

(A) Pacific ring of fire
(B) Andes Range

(C) Sharm el Sheikh , Egypt
(D) Central and Atlantic Ridge

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Which planet in the solar system is farthest from the sun...?

(A) Mercury
(B) Neptune

(C) Venus
(D) Mars

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