Vacuum tubes have been replaced by__________...? Mcqs

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Vacuum tubes have been replaced by__________...?

(A) Conductors
(B) Diodes

(C) Transistors
(D) None of these

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Which amongst the following cannot pass through vacuum...?

(A) Light
(B) Radiation

(C) Sound
(D) None of These

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The ratio of output to input is called...?

(A) Energy
(B) Work

(C) Power
(D) Efficiency

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The earth surface & crust constantly evolving due to ...?

(A) Rotary cycle
(B) Normal cycle

(C) Rock cycle
(D) Change cycle

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Elements which have same number of protons but different number of neutrons are called as _________ ...?

(A) Isotopes
(B) Isomers

(C) Allotropes
(D) Allomers

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746 watts are equivalent to_____________...?

(A) 1 Joule
(B) 1 erg

(C) 1HP
(D) 1 poise

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The book “Kitab-ul-manazir” was written by ______...?

(A) Jabir bin Hayan
(B) Ibn-al-Haitham

(C) Ali Ibn-Isa
(D) Bu-Ali Sina

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The process of splitting water molecules in the presence of light energy is called_________...?

(A) Electrolysis
(B) Photolysis

(C) Radiolysis
(D) Thermolysis

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What is relation between Volume of a gas and Pressure...?

(A) Directly Proportional
(B) Exponentially Related

(C) Not Related
(D) Inversely Proportional

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Which process includes all of the other processes listed...?

(A) Absorption
(B) Assimilation

(C) Secretion
(D) Metabolism

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