8 JEE Main 2020 Nuclear Physics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 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.
You are given that Li 3 7 = 7 . 0160 u , Mass of Mass of He 2 4 = 4 . 0026 u and Mass of He 1 1 = 1 . 0079 H When 20 g…
Given the masses of various atomic particles m P = 1 , 0072   u , m n = 1 , 0087   u , m e = 0 .000548 R…
Find the Binding energy per nucleon for Sn 50 120 . Mass of proton m p = 1 . 00783   U , mass of neutron m n = 1 .…
Activities of three radioactive substances A ,   B and C are represented by the curves   A ,   B and C ,…
The activity of a radioactive sample falls from 700 s - 1 to 500 s - 1 in 30 minutes. Its half life is close to:
A radioactive nucleus decays by two different processes. The half-life for the first process is 10   s and that fo…
The radius R of a nucleus of mass number A can be estimated by the formula R = 1 . 3 × 10 - 15 A 1 / 3 m . It foll…
In a radioactive material, a fraction of active material remaining after the time t   i s   9 16 . The fracti…