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QAIPMT-2007-Ph-2341: NEET 2007 Physics - Class 12 AIPMT-2007-Ph-2341 Solution: Two radioactive substances A and B have decay constants \(5 \)…
Two radioactive substances A and B have decay constants and respectively. At t = 0 they have the same number of nuclei. The ratio of number of nuclei of A to those of B will be after a time interval
Multiple Choice Options
- A
- B
- C
- D
Step-by-Step Verified Solution
N A = N 0 e �5 _ t
N B = N 0 e � _ t
Given N A N B = ( 1 e ) 2
_ N 0 e _ 5 _ t N 0 e _ _ t = ( 1 e ) 2
_ e �4 _ t = e -2
_ t = 1 2 _