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प्रश्न
State the penetrating range of α, β and γ radiations.
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उत्तर
The penetrating power of α particle is least. Penetrating power of β
particles is less but 100 times more than that of a particle. γ radiations have
maximum penetration power. They are 100 times more penetrating than β
particles.
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संबंधित प्रश्न
Name the unit in which the work function of a metal is expressed.
Give a scientific explanation.
When the radiation coming out from a certain radioactive substance is passed through an electric field, marks are found at three places on the photographic plate placed in its path.
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
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)
Assertion (A): Hydrogen atom consists of only one electron but its emission spectrum has may lines.
Reason (R): Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.
