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Home Physics 10

Physics 10 Class Notes CHAPTER No 18

October 5, 2020
in Physics 10
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Physics 10 Class Notes CHAPTER No 18

Table of Contents

  • Physics 10 Class Notes CHAPTER No 18
    • Comprehensive Question
  • Class 10 Physics Notes PDF
      • MORE PHYSIC NOTES CHAPTER WISE

Physics 10 Class Notes Nuclear Physics Unit 18 Major Concepts, Atom and nucleus, Natural radioactivity, Background radiations, Nuclear transmutations, Nature and properties of radiations, Half-life and its measurement, Uses of radioisotopes, Nuclear fission, Nuclear fusion, Hazards of radiation and safety measure, Solution of problems.

 

Comprehensive Question

 
What is the nucleus? How a nuclide is represented symbolically. 
Ans. Atom and Atomic nucleus:
All matter is composed of atoms that are in turn composed of a heavier, central, positively charged core called `nucleus’ surrounded by a less massive negatively charged cloud of ‘electrons’ the nucleus lies at the centre of the atom, occupying only 10-15 of its volume since the electrical force comes from both the electron and the nucleus as shown in the figure. The nucleus is about 10,000 times smaller than the atom. The size difference is like a ping pong ball in the center of a 2km circle.
 
All nuclei are composed • of two types of particles; protons and neutrons (called nucleons). The only exception is the ordinary hydrogen nucleus, which is a single proton. In describing the atomic nucleus, we must use the following quantities:
The atomic number Z (sometimes called the Charge number), which equals the number of protons in the nucleus.
The nucleon (or mass) number A, which equals the number of nucleons (neutrons plus protons) in the Number of nucleons.
 
10th class online Physics notes for all chapter 10 to Chapter 18 all Chapter pdf format available. in PDF. you can check and download 10th physics chapter wise notes in pdf form.
 

Class 10 Physics Notes PDF

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