1. Tardigrade
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  3. Physics
  4. Consider α-particles, β-particles and γ-rays each having an energy of 0.5 MeV. In increasing order of penetrating powers, the radiations are

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Q. Consider $\alpha$-particles, $\beta$-particles and $\gamma$-rays each having an energy of 0.5 MeV. In increasing order of penetrating powers, the radiations are

IIT JEEIIT JEE 1994

Solution:

Penetrating power is maximum for $\gamma$-rays, then of $\beta$ -particles and then $\alpha$-particles because basically it depends on the velocity. However, ionization power is in reverse order.