What is the charges on A particle , B Particle, Gamma Particle & Compare their relative penetration?

Ans: Charges on radiation are:-

(A) Alpha particle: Positive charge & less penetrating in comparison to Beta Particle & Gamma Ray. They can be stopped by a thin sheet of paper.

(B) Beta Particle: Negative charge & have definite range of penetration. Easily absorbed in the matter.

(C) Gamma Ray: No charge & highly penetrating.