Question

what is penetrating power of Alpha particles in aluminium sheet ​

Answer 1

The penetrating power of alpha rays, beta rays, and gamma rays varies greatly. Alpha particles can be blocked by a few pieces of paper. Beta particles pass through paper but are stopped by aluminum foil. Gamma rays are the most difficult to stop and require concrete, lead, or other heavy shielding to block them.

Answer 2

Heya mate....here is your answer ⬇

penetrating power of Alpha particles in aluminium sheet:

➡Since Alpha Ray has the least penetrating power so it cannot pass through the aluminium sheet and hence gets blocked

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