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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An iron nail/steel rod can be magnetize by...?

(A) By passing an electric current around it
(B) By heating it on a high flame

(C) By hammering
(D) By keeping it with an iron rod

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Which of the following chemicals is not found in tobacco smoke...?

(A) Chlorine bleach
(B) Rocket fuel

(C) Nail polish remover
(D) Barbecue lighter fluid

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Highest Clouds are ___________...?

(A) Cirrocumulus
(B) Cirrus

(C) Cirrostratus
(D) All of these

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Which of the following is the most toxic gas...?

(A) Carbon dioxide
(B) Carbon monoxide

(C) Nitrogen
(D) Hydrogen

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Recapitulation of biogenetic law was given by:...?

(A) Darwin
(B) Lamarck

(C) Haeckel
(D) Mendel

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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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Which of the following is the reason of global warming...?

(A) Presence of sulphite
(B) Rise in CO2 concentration

(C) Oxides of nitrogen
(D) Formtion of ozone

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Which planet is called “Lopsided planet” ...?

(A) Mercury
(B) Venus

(C) Uranus
(D) Saturn

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Female Ova are ___________...?

(A) Haploid
(B) Diploid

(C) Triploid
(D) None of these

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