A ______ is a semiconductor component that can either be used as switch or an amplifier....? Mcqs

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A ______ is a semiconductor component that can either be used as switch or an amplifier....?

(A) Three pine shoe
(B) Transistor

(C) Reflector
(D) Dipole

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Nutrients that are needed in the highest concentration called...?

(A) Micronutrients
(B) Macronutrients

(C) Essential nutrients
(D) Trace elements

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Who discovered the blood group of man...?

(A) Edward Jenner
(B) Laren

(C) Karl Landsteiner
(D) William Harvey

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Magnifying power of a simple microscope can be increased by ...?

(A) increasing focal length of the lens
(B) Decreasing focal length of the lens

(C) Lens of large aperture
(D) lens of short aperture

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Which of the following is a positively charged particle emitted by a radioactive element...?

(A) Beta Rays
(B) Alpha Rays

(C) Gamma Rays
(D) None of these

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What is the chemical formula for Sodium carbonate _______ ...?

(A) Na3CO2
(B) CNa2O3

(C) Na2CO3
(D) Na3CO3

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Parsec is a unit of ___________...?

(A) Energy
(B) Time

(C) Power
(D) Distance

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Which of the following type of mirrors can form an image larger than the object...?

(A) Convex
(B) Plane

(C) Concave
(D) None of these

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The sun is _________times bigger than the Earth....?

(A) 105
(B) 107

(C) 109
(D) 111

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Snail belongs to which of the following phylum...?

(A) Annelida
(B) Arthropoda

(C) Mollusca
(D) Echinodermata

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