Chapter#19: The Atomic Nucleus

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## Chapter 18, 19, 20 (Important Questions)

Chapter 18 Theoretical Questions

Chapter 18 Numerical Problems

Chapter 19 & 20 Theoretical Questions

Chapter 19 Numerical Problems

Correction in above file,

Answer for Q.4, Mass Defect is 4.1e-30 kg, and B.E is 2.306 MeV

## Chap18: The Atomic Spectra

Chap 18 (Handout#1) – Bohr’s radius, energy, wavelength and Hydrogen Spectrum

Chap 18 (Handout#2) – X-Rays and LASER

## Chap#17 Advent of Modern Physics

**One more question:**

**What is meant by the term frame of reference? Prove that all the laws of mechanics are the same for all the inertial frame of references. (Chapter 17) (Model Question Paper, 2017)**