A piece of wood collected from cro-Magnon caves gave `4` disintergrations`//`min. A freshly cut wood of the same weight gives `16` d.pm. The cro-magnon man lived about ( Half life of `C^(14)` is `5760` years. Assume the activity is due to `C^(14)` only)

A piece of wood from an archaeological source has a "^14C activity which ls 60% of the activity found in fresh wood today. Calculate the age of the archaeological sample (the half life period of C-14 is 5770 years).

A 25 g piece of characoal is found in some ruins of an ancient city. The sample shows a C^(14) activity of 250 decay/minutes. How long has the three this charcoal came from been dead ? Given, the half-life of C^(14) is 5730 years. The ratio of C^(14) and C^(12) in the living sample is 1.3 xx 10^(-12) .

A 25 g piece of characoal is found in some ruins of an ancient city. The sample shows a C^(14) activity of 250 decay/minutes. How long has the three this charcoal came from been dead ? Given, the half-life of C^(14) is 5730 years. The ratio of C^(14) and C^(12) in the living sample is 1.3 xx 10^(-12) .

A piece of wood from an archaeological sample has 5.0 counts min^-1 per gram of C-14, while a fresh sample of wood has a count of 15.0 min^-1 gram^-1 . If half life of C-14 Is 5770 years, the age of the archaeological sample is

In a sample of wood, the reading of a counter is 32 dpm and in a fresh sample of tree it is 122dpm . Due to error counter gives the reading 2 dpm in absence of .^(14)C . Half life of .^(14)C is 5770 years . The approximate age (in years) of wood sample is :

In a sample of wood, the reading of a counter is 32 dpm and in a fresh sample of tree it is 122dpm . Due to error counter gives the reading 2 dpm in absence of .^(14)C . Half life of .^(14)C is 5770 years . The approximate age (in years) of wood sample is :

A piece of wood from a recently cut tree shows 20 decays per minute . A wooden piece of same size placed in a museum (obtained from a tree cut many years back) shows 2 decays per minute . If half life of C^(14) is 5730 years , then age of the wooden piece placed in the museum is approximately :

An old piece of wood has 25.6% as much C^(14) as ordinary wood today has. Find the age of the wood. Half-life period of C^(14) is 5760 years?

An old piece of wood has 25.6T as much C^(14) as ordinary wood today has. Find the age of the wood. Half-life period of C^(14) is 5760 years.