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प्रश्न
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
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उत्तर
All the above radiations are not emitted in a single decay. There will be either an α emission or a β emission, which may be accompanied by γ-emission.
संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
Write one use of cathode ray tube.
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(a) What type of charge will there be on the nucleus?
(b) What is the value of this charge?
It is advised not to touch a radioactive substance by hand. Give reason.
State three ways of obtaining an electron-beam.
Mention four properties of Becquerel rays.
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A radioactive material decays by simultaneous emissions of two particles with half-lives of 1400 years and 700 years respectively. What will be the time after which one-third of the material remains? (Take In3 = 1.1)
The mean lives of a radioactive substance are 1620 and 405 years for β-emission and β-emission respectively. The time after which three fourth of a sample will decay if it is decaying both by β-emission and β-emission simultaneously will be ______ years.
(Take ln 2 = 0.693)
