Questions
A radioactive element has a half life of 2.5 hours. In 10 hours 1 gm of radioactive material is reduced to
a
1/4 gm
b
1/8 gm
c
1/16 gm
d
1/32 gm
detailed solution
Correct option is C
N=N02tT⇒m=m02tT; Here m is the mass of radio active material. ∴ In 10 hours m=m02102.5=124gm=116gmTalk to our academic expert!
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The half life period of a radioactive element X is same as the mean life time of another radioactive element Y. Initially both of them have the same number of atoms. Then
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