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प्रश्न
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
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उत्तर
The radiation which has the highest ionizing power is α radiations.
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संबंधित प्रश्न
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` ?
When is said to be the nucleus unstable?
What do you mean by Atomic number
Give the relative ionizing power of α, β and γ radiations.
An element P disintegrates by α - -emission and the new element suffers two further disintegrations, both by β -emission, to form an element Q. Explain the fact that P and Q are the isotopes.
Why should a radioactive substance not be touched by hands?
What are cathode rays? Why are they called ‘cathode rays’? Name a material which exhibits fluorescence when cathode rays fall on it.
In a cathode ray tube state the purpose of covering cathode by thorium and carbon.
