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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
Answer the following questions based on a hot cathode ray tube.
What will happen to the beam when it passes through the electric field?
A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer
Name the unit in which the work function of a metal is expressed.
Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
What is meant by radioactivity?
Give the relative ionizing power of α, β and γ radiations.
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.
An electrons emitter must have how much work function and melting point.
From α, β and γ-rays, name the one which is not affected by electric or magnetic field?
