The time taken by light to reach the earth is...? Mcqs

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The time taken by light to reach the earth is...?

(A) 4 minutes 15 seconds
(B) 8 minutes 15 seconds

(C) 10 minutes 15 seconds
(D) 7 minutes 15 seconds

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

(A) Pascal
(B) Joule

(C) Tesla
(D) Henry

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Surena an invention of the university of Tehran is...?

(A) Bomb
(B) Missile

(C) Robot
(D) None of these

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Acoustics is the science of

(A) Light
(B) Waves

(C) Sound
(D) Colours

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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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Who invented the steam engine...?

(A) James Watt
(B) Faraday

(C) Bessel
(D) All of these

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Water _______ at 32° Fahrenheit and boils at 212° Fahrenheit...?

(A) Freeze
(B) Frozen

(C) Freezes
(D) None of these

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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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Electron was discovered by:...?

(A) Rutherford
(B) J.J Thomson

(C) James Chadwick
(D) None Of These

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White light passing through the prism splits into_______...?

(A) 4
(B) 5

(C) 6
(D) 7

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