The number of `C^(14)` atoms in a sample is 100 . The half- life period of `C^(14)` is 5730 year . The number of `C^(14) ` atoms in the sample after 5730 year.

The half-life of C^(14) is 5760 years . For a 200 mg sample of C^(14) , the time taken to change to 25 mg is -

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)

The half-life of ._(6)^(14)C is 5730 year. What fraction of its original C^(14) would left after 22920 year of storage?

The half-life of ._(6)^(14)C is 5730 year. What fraction of its original C^(14) would left after 22920 year of storage?

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) .