Which of the following is used as a moderator in nuclear reactor?
Thorium
Graphite
Radium
Ordinary water
Additional Questions
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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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Isotopes are separated by |
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The wavelength of X-rays is of the order of |
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Mesons are found in |
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Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material? |
Answer |
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Which of the following shows the masses of the three elementary particles in decreasing order? |
Answer |
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What is the wavelength of visible spectrum? |
Answer |
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Which of the following has a least penetrating power? |
Answer |