If half life of radium is 77 days. Its decay constant in day will be
A
day
B
day C
day
D
day
Text Solution
Verified by ExpertsThe correct answer is:
B
The time required for the number of parent nuclei to fall to 
is called half-life 
and may be related to 
as follows.
Since, 
we have, 
or 
or 
Given, 
days
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