Modern Physics 3 Question 20
20. Consider -particles, -particles and -rays each having an energy of . In increasing order of penetrating powers, the radiations are
(1994, 1M)
(a)
(b)
(c)
(d)
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Solution:
- Penetrating power is maximum for
-rays, then of -particles and then -particles because basically it depends on the velocity. However, ionization power is in reverse order.