Time Left - 20:00 mins
JEE 2020: Nuclear Physics Quiz (01.10.2019)
Attempt now to get your rank among 321 students!
Question 1
A high energy gamma ray while passing through the strong electric field of the nucleus sometimes gives rise to a particle and antiparticle. This phenomenon is called
Question 2
Let Fpp, Fpn and Fnn denote the magnitude of the net force by a proton on a proton, by a proton on a neutron and by a neutron on a neutron respectively. Neglect gravitational force. When the separation is 1 fm, -
Question 3
In the nuclear fusion reaction, given that the repulsive potential energy between the two nuclei is −7.7 × 10−14 J, the temperature at which the gases must be heated to initiate the reaction is nearly [Boltzmann’s constant k = 1.38 × 10−23 J/K]
Question 4
The compound unstable nucleus often decays in accordance with the following reaction other particles
In the nuclear reaction presented above, the other particles might be
In the nuclear reaction presented above, the other particles might be
Question 5
It is found that if a neutron suffers an elastic collinear collision with deuterium at rest, fractional loss of its energy is pd; while for its similar collision with carbon nucleus at rest, fractional loss of energy is pc. The values of pd and pc are, respectively:
Question 6
An unstable element X undergoes alpha decay to produce element Y. Determine the disintegration energy during this radioactive decay assuming that the atomic mass of X is 25.7123 u and that of Y is 21.1321 u ( Mass of alpha particle = 4.001203 u)
X Y + α
X Y + α
Question 7
The binding energy per nucleon of deuteron and helium nucleus is 1.1 MeV and 7 MeV respectively. If two deuteron nuclei react to form a single helium nucleus, then the energy released is
Question 8
If M0 is the mass of an oxygen isotope 8O17, MP and MN are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is
Question 9
A radioactive nucleus has a single decay mode with half life . Another radioactive nucleus has two decay modes 1 and 2. If decay mode 2 were absent, the half life of would have been . If decay mode 1 were absent, the half life of would have been 3 . If the actual half life of is , then the ratio is
Question 10
Two species of radioactive atoms are mixed in equal number. The disintegration constant of the first species is and of the second is /3. After a long time the mixture will behave as a species with mean life of approximately
- 321 attempts
- 2 upvotes
- 10 comments
Tags :
Oct 1JEE & BITSAT