The height at which atmospheric pressure declines by a factor of e (an irrational number equal to 2.71828) is called __________....? Mcqs

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The height at which atmospheric pressure declines by a factor of e (an irrational number equal to 2.71828) is called __________....?

(A) Average height (H)
(B) Scale height (H)

(C) Mean height (H)
(D) Standard height (H)

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The maximum number of electrons M orbit possesses...?

(A) 4
(B) 8

(C) 12
(D) 18

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First controlled fission of an atom was carried out in ________ on 1938....?

(A) U.S
(B) Germany

(C) Russia
(D) U.K

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What is ‘Tokamak’ ...?

(A) An Israeli radar system
(B) An American anti-missile system

(C) A defence collaboration between Japan and South Korea
(D) A device used in nuclear-fusion research for magnetic confinement of plasma

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Friction opposes motion between two bodies in contact because of ______...?

(A) Charges on bodies
(B) Weight of bodies

(C) Roughness of surfaces
(D) None of above

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The cold war between the organisms of a community occupying the same habitat is called _____...?

(A) Predation
(B) Competition

(C) Mutualism
(D) Commensalism

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What is the range, in hertz, of the normal human hearing...?

(A) 10 Hz to 10 kHz
(B) 20 Hz to 20 kHz

(C) 2000Hz
(D) 40 Hz to 40 kHz

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Summer solstice means__________...?

(A) longest day
(B) longest night

(C) smallest day
(D) none of these

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Which type of motions are present in solid...?

(A) translational
(B) rotational

(C) vibrational
(D) all of these

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Balloons are filled with _________ ...?

(A) Nitrogen
(B) Helium

(C) Oxygen
(D) Argon

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