5 JEE Main 2012 Nuclear Physics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2012 previous-year questions from the Nuclear Physics chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Nuclear Physics chapter hub.
A sample originally contained 10²⁰ radioactive atoms, which emit α-particles. The ratio of α particles emitted in the t…
The decay constants of a radioactive substance for α and β emission are λα and λβ respectively. If the substance emits…
Assume that a neutron breaks into a proton and an electron. The energy released during this process is (Mass of neutron…
Which of the following Statements is correct?
The counting rate observed from a radioactive source at t=0 was 1600 counts s⁻¹, and t=8 ~s, it was 100 counts s⁻¹. The…