A radioactive element X with half life 2 h decays giving a stable element Y. After a time t, ratio of X and Y atoms is 1:16 .Time t is

A radioactive element X with half life 2 hrs decays giving a stable element Y. After a time t , ratio of X to Y atoms is 1 : 15 . Time t is.

A radioactive element A with a half-value period of 2 hours decays giving a stable element Y . After a time t the ratio of X and Y atoms is 1 : 7 then t is :

A radioactive isotope X with half-life 1.5xx10^9 y decays into a stable nucleus Y. A rock sample contains both elements X and Y in ratio 1:15. Find the age of the rock .

A radioactive isotope X with half-life 1.5xx10^(9) yr decays into a stable nucleus Y .A rock sample contains both elements X and Y in the ratio 1 : 15. They age of the rock is

A radioactive isotope X with half-life 1.5xx10^(9) yr decays into a stable nucleus Y .A rock sample contains both elements X and Y in the ratio 1 : 15. They age of the rock is

A radioactive element X converts into another stable element Y . Half life of X is 2 hours. Initially only X is present . After a time t if the ratio of atoms of X to Y is 1:4 then the value of t is

The radioactive nucleus of an element X decays to a stable nucleus of element Y.A graph of the rate of romation of Y against time would look like:

A radioactive element X converts into another stable elemnet Y . Half-life of X is 2h . Initally, only X is present. After time t , the ratio of atoms of X and Y is found to be 1:4 Then t in hours is .