Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these

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Conversion of a substance directly from solid to vapour state is known as 1 Ionization 2 Evaporation 3 Vapourisation 4 Sublimation

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Which are the two reactors at the indira gandhi centre for atomic research ( igcar )?

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I am a student of class 12. PCMB group. I am not getting admission in any of the medical colleges. And I am not good at math. So what are the options available for me????

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A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons

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Atoms are composed of 1 Electrons only 2 Protons only 3 Electrons and protons 4 Electrons and nuclei

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there are 3 sources of resistance in a parallel circuit's. 2 of them are rated at 20 ohms, the other at 10 ohms. what is the circuit's total resistance?

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A super conductor is characterized by 1 Zero permeability 2 Low permeability 3 High permeability 4 Infinite permeability

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how longs & what conditions will a matter, say for example U, after an atomic explosion and was converted completely into energy will again condensed back into a matter named U'

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How many colours the sunlight spectrum has ? 1 Five 2 Three 3 Seven 4 Nine

2 Answers   Siscom,

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Which of the following is not a neutral oxide? 1 Carbon monoxide 2 Sulphur dioxide 3 Nitric oxide 4 Water

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what are the advantages and disadvantages of empirical knowledge?

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