The distance between the optical centre of a convex lens and its principal focus is called its_______...? Mcqs

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The distance between the optical centre of a convex lens and its principal focus is called its_______...?

(A) Focal Length
(B) Radius of Curvature

(C) Power
(D) Magnification

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One of the following countries produces maximum energy from atomic reactors...?

(A) France
(B) USA

(C) UK
(D) none

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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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Which part of a bicycle dynamo spins to generate electricity...?

(A) Magnet
(B) Gear

(C) Axle
(D) Coils

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Fish is one of the best source of ______...?

(A) Protein
(B) Vitamin

(C) Mineral
(D) Carbohydrate

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It used to assess concentration or amount of given atomic, molecular or ionic chemical...?

(A) Chromatography
(B) Conductometry

(C) Spectroscopy
(D) Potentiometry

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What are the three "R's" to remember about waste management...?

(A) Reduce, Reuse, and Recycle
(B) Remove, Return, and Relocate

(C) Refuse, Retrain, and Redeem
(D) None of these

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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The type of reproduction in which two parents of different sexes are involved...?

(A) Asexual Reproduction
(B) Sexual Reproduction

(C) Binary Fission
(D) Fragmentation

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Other name of platelets _______...?

(A) Erythrocytes
(B) Leukocytes

(C) thrombocytes
(D) None of these

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