The angle of incidence of a ray for which the angle of refraction is 90° is called ____...? Mcqs

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The angle of incidence of a ray for which the angle of refraction is 90° is called ____...?

(A) Refracted Angle
(B) Critical Angle

(C) Incident Angel
(D) Angle of Deviation

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The Proportion of Hydrogen to Helium in the Sun is________...?

(A) 3:2
(B) 3:1

(C) 1:1
(D) 3:4

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Animals without backbone are called...?

(A) Vertebrates
(B) Invertebrates

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

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The over-cooking of food should be avoided because____________...?

(A) Make the food difficult to digest
(B) Reduce the nutrition value of food

(C) Make food Poison
(D) None

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Sericulture is the study of which discipline ...?

(A) silk production
(B) milk Production

(C) honey production
(D) forest timber production

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Lignite, bituminous & anthracite are different rank of _________ ...?

(A) Iron
(B) Coal

(C) Wood
(D) None of these

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Leach has ________ number of brains....?

(A) Zero
(B) 32

(C) 36
(D) None of these

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Enzymes are ______...?

(A) Steroid in nature
(B) Protein in nature

(C) Lipid in nature
(D) Carbohydrate in nature

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What will be the result if you put yeast in dough...?

(A) The dough will become sour
(B) The dough will become harder

(C) The dough will become smaller
(D) The carbon dioxide will be released

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Which fruit can a diabetic patient eat freely...?

(A) Apple
(B) Banana

(C) Orange
(D) None of these

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