A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ...? Mcqs

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A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ...?

(A) 6 feet
(B) 12 feet

(C) 4 feet
(D) 3 feet

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Which disease affects infants and young children...?

(A) Scurry
(B) Marasmus

(C) Rickets
(D) Osteoporosis

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The unit of Kc for reaction N2 + O2 ⇌ 2NO...?

(A) mol dm^-3
(B) mol^-2 dm^6

(C) mol^-1dm3
(D) No unit

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Pressure in gases is due to _____...?

(A) Collision of molecules with walls of containers
(B) Vibration of molecules

(C) Rotation of molecules
(D) Electromagnetic attraction between molecules

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When blue litmus paper dipped acids, its colour change to ____...?

(A) Pink
(B) Blue

(C) Yellow
(D) Red

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Particle clouds from where stars are formed are known as____________...?

(A) Stellar nurseries
(B) Star clouds

(C) Event horizons
(D) Singularities

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The earth rotates on its axis. It completes one rotation in...?

(A) 36 hours
(B) 24 hours

(C) 12 hours
(D) 48 hours

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Nucleus of an atom was discovered by___________...?

(A) Goldstein
(B) James Chadwick

(C) J J Thomson
(D) Rutherford

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Function of restriction enzymes...?

(A) Join DNA fragments
(B) Cut the DNA

(C) Replicate the DNA
(D) Unwind the DNA

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Water is a...?

(A) Compound
(B) Mixture

(C) Solution
(D) Element

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