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Grade 12th passModern Physics

radioactive substance has half life of 1 hour . therefore if two nuclei of the substance are present initially after one hour only one will remain disassociated.

This statement is false. but what is the reason for this statement to be false ?

prerana

8 Years agoGrade 12th pass

1 Answer

Mahima Kanawat

Approved Tutor Answer8 Years ago

Dear student.... Radioactive reactions follow first order kinetics, so, N =N°(1/2)^t/T ; N=2(1/2)^1/1 ; N= 1, so this statement is true that after 1 hour 1 nuclei will remain undissociated.... WITH REGARDS, MAHIMA (ASKIITIANS FORUM EXPERT)

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