The activity of carbon-14 in a piece of ancient wood is only 12.5 % . If the half life period of carbon-14 is 5760 years, the age of the piece of wood will be

Half-life of carbon-14 is

The activity of an old piece of wood is just one fourth of a fresh piece of wood. If half life period of ""^(14)C is about 6000 years, the age of old piece of wood is:

The activity of an old piece of wood is just 1/4 of the fresh piece of wood. If t_(1//2) of C-14 is 6000 years, the age of the piece of wood is

The ratio of the abundance of carbon -14 to carbon -12 in a sample of dead wood is one quarter the ratio for living wood.If the half life of carbon -14 is 5730 years, which one of the following expressions determines how many years ago the wood died?

The C^(14) to C^(12) ratio in a certain piece of wood is 25% of that in atmosphere. The half life period of C^(14) is 5,580 years. The age of wood piece is ( in years)

An archeological sample of wood has half C^(14) activity as compared to that found in fresh wood of the same plant. The half life of C^(14) is 5770 years. The age of archiological sample of wood will be

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