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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Chemically finger nails are made up of ____________...?

(A) Carbohydrate
(B) Fats

(C) protein
(D) Starch

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The measurement of the hotness of an object is called...?

(A) Humidity
(B) Temperature

(C) Speed
(D) Force

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Instrument used for measuring very high temperature is __________...?

(A) Pyroscope
(B) Pyrometer

(C) Seismograph
(D) Xylometer

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How many kgs are in one ton...?

(A) 707
(B) 907

(C) 807
(D) 607

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The good sources of Vitamin-A are...?

(A) green leafy vegetables
(B) seeds

(C) fresh vegetables and fruits
(D) sea foods

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How is ammonia synthesized...?

(A) Herber process
(B) Regrigration process

(C) Contact process
(D) All of these

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Electric motor was invented by __________ ...?

(A) Michael Faraday
(B) Oliver Evans

(C) Thomas Edison
(D) Horace Day

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Founder of modern astronomy was _________________...?

(A) Archimedes
(B) William Gilbert

(C) Nicolas Copernicus
(D) Michael Faraday

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Chief builder of the body are ___________...?

(A) Carbohydrates
(B) Proteins

(C) Fats
(D) None of these

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