When our sun reaches the end of its red giant phase, it will turn into a___________...? Mcqs

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When our sun reaches the end of its red giant phase, it will turn into a___________...?

(A) Supernova
(B) White Dwarf

(C) Black Hole
(D) Neutron Star

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Ten identical steel balls, each with a mass of 27 g, are immersed in a measuring cylinder initially containing a certain volume of water. The water level rises by 50 cm³ after immersing the balls. What is the density of the steel...?

(A) 0.90 gm/cm^3
(B) 8.1 gm/cm^3

(C) 9.0 gm/cm^3
(D) 13.5 gm/cm^3

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The simplest kind of matter which cannot be further split up into simpler substances by chemical reactions is called...?

(A) Compound
(B) Atom

(C) Molecule
(D) Element

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During which process a gas becomes a liquid...?

(A) Melting
(B) Freezing

(C) Condensing
(D) Boiling

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Myopia is a defect of Human eye. it can be corrected by using a lens called...?

(A) Convex lens
(B) Concave lens

(C) Cylindrical lens
(D) Plano convex lens

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The Renaissance scientist who explained how planets moved around the sun was...?

(A) Kepler
(B) Rebelais

(C) Francis Bacorr
(D) Gutenber

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Lever, pulley, wedge, wheel, inclined plane and screw is/are an examples of...?

(A) Simple Machine
(B) Compound Machine

(C) Both A and B
(D) None

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In general, good absorbents of electromagnetic radiation are also good___________...?

(A) Radiators
(B) Conductors

(C) Insulators
(D) Semi Conductors

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What is the photosynthesis equation in plants...?

(A) 6CO2 + 6H2O → C6H12O6 + 6O2
(B) 6CO2 + 6H2O → C6H12O6 + 6O3

(C) 6CO2 + 6O2 → C6H12O6 + 6H2O
(D) 6H2O + 6O2 → C6H12O6 + 6CO2

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Carbon dating is used for the estimation of the age of ____...?

(A) Rocks
(B) Fossils

(C) Soil
(D) Water

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