De Broglie extend the wave particle duality to electron in ______...? Mcqs

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De Broglie extend the wave particle duality to electron in ______...?

(A) 1920
(B) 1922

(C) 1923
(D) 1925

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The velocity of a satellite is _____ of its mass....?

(A) Independent
(B) Dependent

(C) Equal
(D) Double

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A body of land that is surrounded by water on three sides is called________...?

(A) Strait
(B) Bay

(C) Peninsula
(D) Gulf

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During global warming, the percentage of carbon dioxide has ______...?

(A) Remained unchanged
(B) Reduced in atmosphere

(C) Increased in atmosphere
(D) None of these

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How many years our solar system takes to one orbit around Milky Way galaxy...?

(A) 250
(B) 225

(C) 300
(D) 275

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The Shape of earth is _________...?

(A) Elliptical
(B) Oblate Spheroid

(C) Oval
(D) Spherical

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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A body can escape the gravitational pull of the earth if it is thrown up with a velocity of...?

(A) 25 miles per sec
(B) 60 miles per sec

(C) 7 miles per sec
(D) 10 miles per sec

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Why are soft drink made with chilled water rather than water at room temperature...?

(A) Ingredients dissolve better in chilled water
(B) Chilled water enhances the taste

(C) Chilled water attracts more carbon dioxide
(D) Chilled water is more hygienic

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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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