Atoms and Nuclei (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 4 - 6 of 14

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 268 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 4

» Atoms and Nuclei » Half Life and Mean Life

Appeared in Year: 2013

MCQ▾

Question

Two species of radioactive atoms are mixed in equal number. The disintegration of the first species is λ and of the second isEquation . After a long time the mixture will behave as a species with mean life of approximately,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 5

» Atoms and Nuclei » Mass-Energy Relation

Appeared in Year: 2013

MCQ▾

Question

A nuclear decay is possible if the mass of the parent nucleus exceeds the total mass of the decay particles. If M (A, Z) denotes the mass of a single neutral atom of an element with mass number A and atomic number Z, then the minimal condition that the β decay

Equation

will occur is (me denotes the mass of the β particle and the neutrino mass mv can be neglected):

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 6

» Atoms and Nuclei » Binding Energy Per Nucleon

Appeared in Year: 2014

MCQ▾

Question

The binding energy per nucleon of 5B10 is 8.0 MeV and that of 5B11 is 7.5 MeV. The energy required to remove a neutron from 5B11 is (mass of electron and proton are 9.11 × 1031 kg and 1.67 × 1027 kg, respectively) –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In