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प्रश्न
उत्तर
संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer
State three safety precautions that you would take while handling the radioactive substances.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
What is the value of the speed of gamma radiations in air or vacuum?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
The activity of a certain radionuclide decreases to 15 percent of its original value in 10 days. What is its half life?
[ln (0.15) = -1.9]
