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NIKITA PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQs
- The phenomenon of radioactivity is associated with a)Decay of nucleus...
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- Which one of the following is not a mode of radioactive decay?
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- A nucleus which is unstable and tends to breakdown is called
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- The phenomenon of spontaneous emission of radiations is
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- Radioactivity is a
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- Curie is unit of
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- Heavy radioactive elements eventually turn into
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- Which of the following metals was discovered by Madam Curie?
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- Artificial radioactivity was discovered by …………………………..
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- Radioactive samples are stored in lead boxes because it is
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- the process of radioactive radiations remains unaffected due to
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- Which of the following are positively charged particles?
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- The alpha particle is same as
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- Which of the following particle is deflected towards positive plate in...
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- The mass of an alpha-particle is.
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- To produce intense ionisation, in air at S.T.P., we have to use
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- The penetrating power of alpha-particle is
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- The velocity of alpha-particles is of the order of
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- Which of the following particle can affect photographic plates?
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