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State the energy conversion taking place in a cathode ray tube
Why is a cathode ray tube evacuated to a low pressure?
A nucleus `""_11^24Na` emits a beta particle to change into Magnesium (Mg)
(i) Write the symbolic equation for the process.
(ii) What are numbers 24 and 11 called?
(iii) What is the general name of `""_12^24Mg `with respect to `""_11^24Na` ?
State the penetrating range of α, β and γ radiations.
Name a common device where a hot cathode ray tube is used.
What is meant by Radioactivity?
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
If 10% of a radioactive substance decays in every 5 years, then the percentage of the substance that will have decayed in 20 years will be ______.
A deuteron strikes 8O16 nucleus with subsequent emission of an alpha particle. Identify the nucleus so produced:
