The ability of the Eye to see in the dark, is due to the production of a purple pigment known as________...? Mcqs

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The ability of the Eye to see in the dark, is due to the production of a purple pigment known as________...?

(A) Carotene
(B) Rhodopsin

(C) Iodopsin
(D) Retinene

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Which of the following phenomena of light are involved in the formation of a rainbow...?

(A) Refraction
(B) Dispersion

(C) Total internal reflection
(D) All of the above

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Which of the following vitamin is known as Pyridoxine...?

(A) Vitamin B-1
(B) Vitamin B-2

(C) Vitamin B-6
(D) Vitamin B-12

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Which metal is non toxic in nature...?

(A) Silver
(B) Iron

(C) Copper
(D) Gold

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The device used to convert Alternate Current into Direct Current is called...?

(A) Anemometer
(B) Battery

(C) Galvanometer
(D) Rectifier

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The natural world that surrounds a living and non-living things is called...?

(A) Ecosystem
(B) Environment

(C) Habitat
(D) Biodiversity

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Which one is a vector quantity...?

(A) Mass
(B) Weight

(C) Time
(D) Temperature

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Which gas is used to extract energy from food in photosynthesis...?

(A) O2 (Oxygen)
(B) CO2 (Carbon Dioxide)

(C) H2O (Water)
(D) N2 (Nitrogen)

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Which element has the most % in human body...?

(A) Oxygen 65%
(B) Calcium 75%

(C) Hydrogen 10%
(D) Carbon 18%

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What theory is that the world and man are governed by order and regularity...?

(A) Progression theory
(B) Reconstructionist theory

(C) Evolution theory
(D) None of these

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