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

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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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Nearest galaxy to our milky way is ________...?

(A) Messier 81
(B) Andromeda

(C) Triangulum
(D) Whirlpool

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The chief ingredient of the mosquito repellent cream is derived from...?

(A) Lemon
(B) Neem tree

(C) Rice bran
(D) Tulsi

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The vitamin Folate works together with __________ to produce new red blood cells...?

(A) Vitamin D
(B) Vitamin A

(C) Vitamin B-12
(D) None of the above

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Wood is the main raw material for the manufacture of ____________...?

(A) Paint
(B) Gun powder

(C) Paper
(D) Ink

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The greater the speed of gas particles in a container, the ____...?

(A) Lower the pressure
(B) Greater the pressure

(C) No effect on pressure
(D) Constant pressure

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What are the charges of Proton, Electron, and Neutron respectively...?

(A) Negative, Positive, Neutral
(B) Neutral, Negative, Positive

(C) Positive, Negative, Neutral
(D) Neutral, Positive, Negative

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The lens which coverage a beam of parallel rays of light are called ____...?

(A) Diverging lens
(B) Converging lens

(C) Cylindrical lens
(D) None

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First Atomic theory was proposed by...?

(A) John Dalton
(B) E.Rutherford

(C) De Broglie
(D) D.I.Mendeleef

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Which colour has largest wavelength in the spectrum of white light...?

(A) Violet
(B) Green

(C) Red
(D) Blue

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