What is the approximate penetrating ability of alpha paicle radiation at tissue level -: (A) 0.05 mm, (B) 0.10 mm, (C) 1.50mm, (D) 2.00 mm
Answer is A. Park's textbook of preventive and social medicine 23rd edition. * Alpha paicles approximate penetrating ability - 4cm - 0.05 cm - 0