Back to NUCLEI
NEET UG PHYSICS MCQ: NUCLEI
1
Medium
1 of 1
Analyzing
+4 | -1
Following statements related to radioactivity are given below:
(A) Radioactivity is a random and spontaneous process and is dependent on physical and chemical conditions.
(B) The number of un-decayed nuclei in the radioactive sample decays exponentially with time.
(C) Slope of the graph of loge (no. of undecayed nuclei) Vs. time represents the reciprocal of mean life time
(D) Product of decay constant and half-life time is not constant.
Choose the most appropriate answer from the options given below:
(A) Radioactivity is a random and spontaneous process and is dependent on physical and chemical conditions.
(B) The number of un-decayed nuclei in the radioactive sample decays exponentially with time.
(C) Slope of the graph of loge (no. of undecayed nuclei) Vs. time represents the reciprocal of mean life time
(D) Product of decay constant and half-life time is not constant.
Choose the most appropriate answer from the options given below:
View answer and explanation
Correct option: C
(B) and (C) only
Option C (If assertion is true but reason is false) is correct because while binding energy generally increases with atomic mass number, the density of the nucleus is approximately constant.
More Questions from NUCLEI
Practice All Chapter MCQs →
The ratio of the nuclear radii of elements with mass numbers and is
In a hypothetical fission reaction
The identity of emitted particles is: The radius of the nucleus of the atom with A=216 is (take ) The correct sequence of the increasing wavelength of the given radiation sources is Which of the following nuclear fragments corresponding to nuclear fission between neutron and uranium isotope is correct: Which of the following has the mass closest in value to that of the positron
The identity of emitted particles is: The radius of the nucleus of the atom with A=216 is (take ) The correct sequence of the increasing wavelength of the given radiation sources is Which of the following nuclear fragments corresponding to nuclear fission between neutron and uranium isotope is correct: Which of the following has the mass closest in value to that of the positron