Q24 IF the attenuateon coefficient of lead is 60 cm, the thickness of lead is necessary to transmit 10% of p.1 MeV gamma radiation equal to: A- 0.04 cm B- 0.02 cm C- 0.07 cm D- 0.01 cm IF a neutron of energy 10 MeV elastically collides with "C nucleus. The energy in(MeV) transferred to the carbon nucleus is: A- 8.56 B- 1.54 C-2.84 D-7.76 The experiment confirms the maximum energy of beta radiation in MeV is: A- 0.7 B- 2.7 C- 7 D- 1.7 The thickness of Al which is required to remove 35% of gamma radiation (up= 0.32 car!) A- 1.21 cm B- 1.87 cm C- 1.35 cm D- 1.57 cm