The piece of wood from a recently cut tree shows 20 decays

Last updated: 7/31/2022

The 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 C¹4 is 5730 years, then age of the wooden piece placed in the museum is approximately A 10439 years B 13094 years C 19039 years D 39040 years