What is the importance of the chapter Nuclei? Why do we study the chapter Nuclei? How many marks are carried by the chapter Nuclei in class 12 board examinations? What is the importance mass of a unit? What is one AMU? What is mass of an atom? What is one electron volt? What is the mass energy relation?
A atom, positive charge and mass are densely concentrated at the centre of the atom forming its nucleus. The overall dimensions of a nucleus are much smaller than those of an atom. The mass of an atom is very small, compared to a kilogram. One Amu is one twelfth of carbon 12 atom. Electron volt energy is defined as the energy gained by the electron when accelerated by a potential different of one volt.
CBSE Class 12 Physics NCERT Exemplar Solutions: Chapter 11 – Dual Nature of Radiation and Matter
CBSE Class 12 Physics NCERT Exemplar Solutions: Chapter 10 – Wave Optics
CBSE Class 12 Physics NCERT Exemplar Solutions: Chapter 8 – Electromagnetic Waves
NCERT Exemplar Solutions for CBSE Class 12 Physics: Chapter 13 – Nuclei