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Question

Compare the charge, penetrating power and ionising power of α and γ rays.

WBBSE Class X Physical Science Atomic Nucleus 03 Mark 2024

Answer

Comparison between α rays and γ rays based on charge, penetrating power, and ionising power:

Property α Rays (Alpha Rays) γ Rays (Gamma Rays)
Charge Positive charge (+2) No charge (neutral)
Penetrating Power Low penetration, stopped by a sheet of paper or skin High penetration, can pass through thick materials like concrete and lead
Ionising Power High ionising power, can ionize atoms effectively Low ionising power, but can still ionize atoms over long distances

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