Electron has a much shorter wavelength than visible light, and this allows electron microscopes to produce _____ images....? Mcqs

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Electron has a much shorter wavelength than visible light, and this allows electron microscopes to produce _____ images....?

(A) Lower-resolution
(B) Higher-magnification

(C) Equal-resolution
(D) Higher-resolution

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Which of the following is closest to a yard in length...?

(A) 0.01m
(B) 0.1m

(C) 1m
(D) 10m

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Which are the only two elements on the periodic table that are liquid at room temperature...?

(A) Mercury and Bromine
(B) Carbon and helium

(C) Nitrogen and Hydrogen
(D) Oxygen and Neon

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Elements which have same number of protons but different number of neutrons are called as _________ ...?

(A) Isotopes
(B) Isomers

(C) Allotropes
(D) Allomers

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Select one the mismatched...?

(A) Protein → Amino acid
(B) Carbohydrate → Glucose

(C) Fats → Starch
(D) Nucleic acid → Nucleotide

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Vitamin A is found in the____________...?

(A) Green vegetables
(B) white vegetables

(C) Yellow vegetables
(D) Red vegetables

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The yellow colour in photochemical smog is due to the presence of____________...?

(A) Sulphur dioxide
(B) Carbon dioxide

(C) Nitrogen dioxide
(D) CFC’s

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Which of the following is secreted by liver and stored in the gallbladder...?

(A) Saliva
(B) Bile

(C) Gastric juice
(D) Pancreatic juice

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Refraction of sound can occur in:...?

(A) Water
(B) Air

(C) Both A & B
(D) None of these

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What is the distance of the star Proxima Centauri from the planet Earth ________...?

(A) 4.2 light years
(B) 3.2 light years

(C) 2.4 light years
(D) 1.5 light years

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