In an atomic nucleus, neutrons and protons are held together by: ___________...? Mcqs

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In an atomic nucleus, neutrons and protons are held together by: ___________...?

(A) Gravitational forces
(B) Exchange forces

(C) Coulombic forces
(D) Magnetic forces

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The two elements that are frequently used for making transistors are :...?

(A) Boron and aluminium
(B) Silicon and Germanium

(C) Iridium and Tungston
(D) None of these

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Apiculture refers to___________...?

(A) Rearing silk worms
(B) Science of bee keeping

(C) Science of gardening
(D) Science of cultural norms and trends

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The fluid part of blood is known as __________...?

(A) plasma
(B) platelets

(C) blood cells
(D) None of these

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Polyethene is ______...?

(A) Oil
(B) Paper

(C) Plastic
(D) Wood

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Identify the blackest fish in the oceans...?

(A) Black Seafish
(B) Black Dragon fish

(C) Black Sea Horse
(D) Black Gillfish

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About the requirement of light for germination...?

(A) Some seeds germinate in dark whereas some require light
(B) All seeds germinate in dark

(C) All seeds germinate in light
(D) None

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What happens when two opposite poles of magnets are brought close to each other...?

(A) They repel
(B) They attract

(C) They make an electric current flow
(D) None

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A mode of heat transfer that occurs by the mass motion of a fluid is called...?

(A) Radiation
(B) Convection

(C) Conduction
(D) None

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An optical instrument used to measure the properties of visible light is called...?

(A) Spectroscope
(B) Telescope

(C) Microscope
(D) Binoculars

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