Inability to name the instruments used for detecting
radiation
24Inability to state some useful and harmful effects of
radioactivity
25Inability to give correct reason why solid radioactive
waste is not disposed of by composting
26Inability to state specific uses of some radioisotopes like
cobalt, iodine, phosphorus
27Inability to differentiate between chemical and nuclear
reactions
28Inability to relate energy in fusion reaction to Einstein’s
equation
29Inability to estimate the penetrating power of radiations
30Inability to identify the deflection of , , rays in
electrostatic field, justify the directions of deflections and
identify component stopped by metal foil