JEE Main 2021 Physics question
The half-life of Au is 3 days. If atomic weight of Au is 198 g/mol then the activity of 2 mg of Au is [in disintegration/second] :
Answer: (D)
The half-life of Au is 3 days. If atomic weight of Au is 198 g/mol then the activity of 2 mg of Au is [in disintegration/second] :