Question

Identify the correct ascending order of $\alpha ,\beta$ and $\gamma$ with reference to their ionizing power:
I) $\alpha$ -ray II) $\gamma$ -ray III) $\beta$ -ray

• A. II,III,I
• B. I,III,II
• C. II,I,III
• D. I,II,III

Answer 1

Answer: (A)

II,III,I

Order of ionisation power: $\alpha -ray>\beta -ray>\gamma -ray$