The beta activity of `1 g` of carbon made from green wood is 15.3 counts per minute. If the activity of `1 g` of carbon derived from the wood of an Egyptian mummy case is 9.4 counts per minute under the same conditions, how old is the wood of the mummy case?

The beta- activity of a sample of CO_(2) prepared forma contemporarty wood gave a count rate of 25.5 counts per minute (cp m) . The same of CO_(2) form an ancient wooden stratue gave a count rate of 20.5 cp m , in the same counter condition. Calculate its age to the nearest 50 year taking t_(1//2) for .^(14)C as 5770 year. What would be the expected count rate of an identical mass of CO_(2) form a sample which is 4000 year old?

The beta- activity of a sample of CO_(2) prepared form a contemporary wood gave a count rate of 25.5 counts per minute (cp m) . The same of CO_(2) form an ancient wooden statue gave a count rate of 20.5 cp m , in the same counter condition. Calculate its age to the nearest 50 year taking t_(1//2) for .^(14)C as 5770 year. What would be the expected count rate of an identical mass of CO_(2) form a sample which is 4000 year old?

The normal activity of living carbon-containing matter is found to be about 15 decays per minute for every gram of carbon. This activity arises from the small proportion of radioactive ""_6^14C present with the stable carbon isotope ""_6^12C . When the organism is dead, its interaction with the atmosphere (which maintains the above equilibrium activity) cases and its activity begins to drop. From the known half-life (5/30 years) of ""_6^14C , and the measured activity, the age of the specimen can be approximately estimated. This is the principle of ""_6^(14)C dating used in archacology. Suppose a specimen from Mohenjodaro gives as activity of 9 decyas per minute per gram of carbon. Estimate the approximate age of the Indus-Vally civillisation.

The normal activity of living carbon-containing matter is found to be about 15 decays per minute for every gram of carbon. This activity arises from the small proportion of radioactive "_6^14C present with the stable carbon isotope "_6^12C . When the organism is dead, its interaction with the atmosphere (which maintains the above equilibrium activity) ceases and its activity begins to drop. From the known half-life (5730 years) of "_6^14C , and the measured activity, the age of the specimen can be approximately estimated. This is the principle of "_6^14C dating used in archaeology. Suppose a specimen from Mohenjodaro gives an activity of 9 decays per minute per gram of carbon. Estimate the approximate age of the Indus-Valley civilisation.

Sample of carbon obtained from any living organism has a decay rate of 15.3 decays per gram per minute. A sample of carbon obtained from very old charcoal shows a disintegration rate of 12.3 disintegrations per gram per minute. Determine the age of the old sample given the decay constant of carbon to be 3.839 xx 10^-12 per second