Grade 12th passModern Physics

Half life of radioactive element is 5 minutes at the end of 20 minutes its ___________ % quantity is disintegrated

Rimmi Kaur

9 Years agoGrade 12th pass

1 Answer

Bhavya

9 Years ago

Dear student
in 5 minutes a quantity becomes ½ of its original value.Since 20 minutes = 4 half lives thus the quantity of substance would remain as (1/2)^4 = 1/16

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Half life of radioactive element is 5 minutes at the end of 20 minutes its ___________ % quantity is disintegrated

Rimmi Kaur

1 Answer

Bhavya

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