A radioactive substance X decys into ano...

A radioactive substance `X` decys into another radioactive substance `Y`. Initially, only `X` was present . `lambda_(x)` and `lambda_(y)` are the disintegration constant of `X` and Y. `N_(y)` will be maximum when.

`N_y/(N_x-N_y)=lamda_y/(lamda_x - lamda_y)`

`N_x/(N_x-N_y)=lamda_x/(lamda_x - lamda_y)`

`lamda_yN_y= lamda_x N_x`

`lamda_yN_x=lamda_xN_y`

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