Which of the following cannot be polarized...? Mcqs

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Which of the following cannot be polarized...?

(A) Radio waves
(B) Ultraviolet rays

(C) X-rays
(D) Ultrasonic waves

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A body is in unstable equilibrium after slight tilt if its center of gravity ______...?

(A) Remains on one side of the point of contact
(B) Remains above the point of contact

(C) Passes over the point of contact
(D) Is positioned at its bottom

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Which rays are trapped in our galaxy by magnetic waves...?

(A) Alpha rays
(B) Gamma rays

(C) Cosmic rays
(D) None of these

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Optic fibers are mainly used for which of the following:...?

(A) Communication
(B) Weaving

(C) Food indudtry
(D) None of these

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Which simple machine would stairs be an example of...?

(A) Pulley
(B) Inclined Plane

(C) Lever
(D) Wheel

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Carpology is a discipline devoted to the study of what...?

(A) Corbons
(B) Cubes

(C) Seeds and fruits
(D) Infertile soils

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Strength of intermolecular forces from ionic or covalent bond is _______...?

(A) Weaker
(B) Stronger

(C) Equal
(D) None of above

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Substances that react with both acids and bases are called...?

(A) Conjugate acids
(B) Conjugate bases

(C) Amphoteric substances
(D) Buffers

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In human, Which body part develop first ...?

(A) Heart
(B) Brain

(C) Lungs
(D) Kidneys

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Scalar quantities have ______ and suitable unit....?

(A) Magnitude
(B) Direction

(C) Both a and b
(D) None of them

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