An accident occurs in a laboratory in which a large amount of a radioactive material, having a half life of `20` days, becomes embeded in the foor and walls so that the level of adiation is `32` times the permissible level. The laboratory can be safely occupied after

An accident in a laboratory deposits some amount of radioactive material of half-life 20d on the floor and the walls. Testing reveals that the level of radiation is 32 times the maximum permissible level. After how many days will it be safe to use the room?

An accident in a nuclear laboratory resulted in depostion of a certain amount of radioactive material of half - life 18 days inside the laboratory. Tests revealed that the radiation was 64 times more than the permissible level required for safe operation of the laboratory. What is the minimum number of days after which the laboratory can be considered safe for use?

As accident in a nuclear laboratory resulting in deposition of a certain amount of radioactive material of half life 18 days inside the laboratory Tests revealed that the radiation was 64 times more than the permissible level required for save operation of the laboratory what is the minimum number of days after which the laboratory can be considered safe for use?

As accident in a nuclear laboratory resulting in deposition of a certain amount of radioactive material of half life 18 days inside the laboratory Tests revealed that the radiation was 64 times more than the permissible level required for save operation of the laboratory what is the minimum number of days after which the laboratory can be considered safe for use?

As accident in a nuclear laboratory resulting in deposition of a certain amount of radioaction radioctive material of half life 18 days inside the loboratory Teste revealed that the radiation was 64 times more than the permissible lovel repuered for save operation of the laboratory what is the minimum number of days after which the laboratory can be considered safe for use?

Some amount of a radioactive substance (half-life= 10 days) is spread inside a room and consequently the level of radiation becomes 50 times the permissible level for normal occupancy of the room. After how many days the room will be safe for occupation?

Some amount of a radioactive substance (half-life =10 days ) is spread inside a room and consequently the level of radiation become 50 times the permissible level for normal occupancy of the room. After how many days will the room be safe for occupation?.