General Knowledge :: General Science
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Which of the following is used as a moderator in nuclear reactor?
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Which among the following is a positively charged particle emitted by a radioactive element?
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Atoms are composed of
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In an atomic explosion, enormous energy is released which is due to
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Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
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Which of the following shows the masses of the three elementary particles in decreasing order?
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What is the wavelength of visible spectrum?
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