Which among the following waves is used for communication by artificial satellites ...? Mcqs

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Which among the following waves is used for communication by artificial satellites ...?

(A) Micro waves
(B) Radio waves

(C) A. M.
(D) Infra-red waves

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Which of the following glands secrete tears...?

(A) Lachrymal
(B) Pituitary

(C) Thyroid
(D) Pancreas

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A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to__________...?

(A) Prop him up if he falls
(B) Spread out his weight and reduce the pressure on the rope

(C) Add extra weight to keep the rope tightly stretched
(D) To keep the Center of gravity always above vertically above the rope

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Which disease affects infants and young children...?

(A) Scurry
(B) Marasmus

(C) Rickets
(D) Osteoporosis

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In onion pink color is due_____ ...?

(A) anthocyanin
(B) Carotene

(C) Xanthophylls
(D) None of these

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Ohm's law is not applicable to ______...?

(A) D.C. circuits
(B) Small resistors

(C) High currents
(D) Semiconductors

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The property by virtue of which metals can be beaten into thin sheets is known as...?

(A) Ductility
(B) Malleability

(C) Conductivity
(D) Density

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The splitting of a heavy nucleus into smaller nuclei is called...?

(A) Fusion
(B) Fission

(C) Half-life
(D) Gamma decay

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The number shown below the symbol of element is called...?

(A) Mass Number
(B) Atomic Number

(C) Valance Number
(D) Atomic Mass

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The properties used for heat...?

(A) Hot, Energy, Cold
(B) Color, Smell, Sound

(C) , Heavy, Light, Hard
(D) Circle, Square, Point

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