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Question
Identify the correct ascending order of α,β and γ rays with reference to their ionizing power.
(I) α−ray, (II) γ−ray, (III) β−ray
Identify the correct ascending order of α,β and γ rays with reference to their ionizing power.
(I) α−ray, (II) γ−ray, (III) β−ray
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Solution
The correct option is A II,III,I
The ionizing power of α rays are high as they have higher charge and mass compared to β rays and γ rays.
Also, α particles move relatively slow and can cause multiple ionization within a very small distance.
The ionizing power of γ− rays are least as they are photons, and also their penetrating power is high, so they do not interact with the particles they come across.
Therefore, the ascending order of their ionization power is γ,β and α.
Hence, option (A) is correct.
The ionizing power of α rays are high as they have higher charge and mass compared to β rays and γ rays.
Also, α particles move relatively slow and can cause multiple ionization within a very small distance.
The ionizing power of γ− rays are least as they are photons, and also their penetrating power is high, so they do not interact with the particles they come across.
Therefore, the ascending order of their ionization power is γ,β and α.
Hence, option (A) is correct.
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