NEET UG PHYSICS MCQ: NUCLEI

1 Medium

1 of 1

Application +4 | -1

Two radioactive substances A and B have decay constant

5\lambda \;

and

\lambda

respectively. At t = 0 they have the same number of active nuclei. The ratio of number of active nuclei of A to those of B will be

2\left( {1/{e^2}} \right)

after a time interval

View answer and explanation

Correct option: C

1/2\lambda

Option C (

1/2\lambda

) is correct because it satisfies the given ratio of active nuclei after the specified time interval.

More Questions from NUCLEI

Practice All Chapter MCQs →

\mathrm{216}

\mathrm{125}

{ }_{92} X^{236} \rightarrow{ }_{56} Y^{141}+{ }_{36} Z^{92}+3 R

({R})

{R_0}\; = \mathrm{ }1.3fm

\left({ }_0^1 \mathrm{n}\right)

\left({ }_{92}^{235} \mathrm{U}\right)

1\,\,a.m.u = 931\,\,MeV