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उत्तर
Cathode rays are used for:
(i) Converting electrical signal into a visual signal, (ii) In television.
संबंधित प्रश्न
Why do Free electrons not leave the metal surface on their own
A radioactive nuclide `""_86^226` Ra decays by emission of two alpha particles, one beta particle and gamma rays. Which of the following is the resulting nuclide X?
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
Define bound electrons.
State two characteristics of the substance used as thermionic emitter.
How is a cathode ray beam affected while passing through a magnetic field?
State three common properties of beta rays and cathode rays.
In U238 ore containing Uranium the ratio of U234 to Pb206 nuclei is 3. Assuming that all the lead present in the ore is final stable product of U238. Half life of U238 to be 4.5 × 109 years and the age of ore is ______ × 109 years. (in 109 years)
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 ______.
In beta decay, what particles can the nucleus emit?
