“Each electron in an atom must have its own unique set of quantum numbers” is a statement of_______________...? Mcqs

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“Each electron in an atom must have its own unique set of quantum numbers” is a statement of_______________...?

(A) Aufbau principle
(B) Pauli exclusion principle

(C) Hund’s rule
(D) Periodic law

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If force of 6N displaces an object 2m in the direction of force, then work done will be __________...?

(A) 0
(B) 12 Joule

(C) 3 Joule
(D) Both b and c

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Optic fibers are mainly used for which of the following:...?

(A) Communication
(B) Weaving

(C) Food indudtry
(D) None of these

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Night vision is possible with the help of ___________...?

(A) Red light
(B) Violet light

(C) Infrared Rays
(D) Ultra violet Light

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What is the primary cause of cholera, diarrhea, and typhoid diseases...?

(A) Chemical Pollutants
(B) Microbial Pollutants

(C) Physical Pollutants
(D) Thermal Pollutants

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What is used in making of alloys...?

(A) Gypsum
(B) Granite

(C) Chromium
(D) Lime-stone

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Which of these is not a Metamorphic rock...?

(A) Quartzite
(B) Slate

(C) Gneiss
(D) Schist

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A photostat machine works on _____________...?

(A) electromagnetic image making
(B) magnetic image making

(C) thermal image making
(D) electrostatic image making

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Period of extensive metabolic activity, in which cell grow, enzymes are synthesizes...?

(A) S phase
(B) M phase

(C) G2 phase
(D) G1 phase

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The time in which Earth completes its revolution around the Sun is________...?

(A) 365.25 days
(B) 340 days

(C) 325 days
(D) 360 days

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