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प्रश्न
Name two radioactive substances.
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उत्तर
Two radioactive substances are Uranium, Radium.
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संबंधित प्रश्न
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
What do you mean by Atomic mass
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus B (mass number 234 and atomic number 90) by the loss of one particle.
What particle was emitted?
State three safety precautions that you would take while handling the radioactive substances.
How is a cathode ray beam affected while passing through a magnetic field?
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
Name a common device where a hot cathode ray tube is used.
State one use of radio-isotopes.
