The critical velocity vc = ______...? Mcqs

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The critical velocity vc = ______...?

(A) gR
(B) g/R

(C) √gR
(D) √g/R

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The yellow colour in photochemical smog is due to the presence of____________...?

(A) Sulphur dioxide
(B) Carbon dioxide

(C) Nitrogen dioxide
(D) CFC’s

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Which are mixtures in which the solute particles are dispersed...?

(A) Solutions
(B) Compounds

(C) Suspensions
(D) None

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A device that converts mechanical energy into electric energy is called_______...?

(A) Motor.
(B) Transformer.

(C) Coil.
(D) Generator.

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The multiplication of new cells takes place by a process known as _____...?

(A) Cell Division
(B) Cell Growth

(C) Cell Differentiation
(D) Cell Specialization

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A body is in equilibrium when it has ______...?

(A) Uniform speed
(B) Uniform acceleration

(C) Both a and b
(D) Zero acceleration

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If zero line of Vernier scale coincides with zero of main scale, then zero error is ______...?

(A) Positive
(B) Zero

(C) Negative
(D) One

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The symbol denotes the proton number is ______...?

(A) P
(B) N

(C) Z
(D) A

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Which of the following is responsible for largest amount of oxygen on earth...?

(A) Peat bogs
(B) Algae

(C) Trees
(D) None of these

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Upon completion in 2029, which of the following will become the most powerful telescope in the world...?

(A) James webb 5.0 telescope
(B) Giant Magellan space telescope

(C) The Vainu Bappu Telescope
(D) Hubble space telescope 2.0

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